Illustrative Math Alignment: Grade 8 Unit 3

Functions and Volume

Lesson 8: Linear Functions

Use the following Media4Math resources with this Illustrative Math lesson.

Title	Body	Curriculum Topic
Math Clip Art--Linear Function Tables 02	Math Clip Art--Linear Function Concepts--Linear Function Tables 02 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on linear function tables. It presents a data table demonstrating that a linear function table shows a common difference for values of f(x). This visual representation helps students understand the fundamental characteristic of linear functions - the constant rate of change.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Function Tables 03	Math Clip Art--Linear Function Concepts--Linear Function Tables 03 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, specifically linear function tables. It builds on the previous image by showing that the common difference in a linear function can also be negative. This concept is crucial for understanding decreasing linear functions and their representation in tabular form.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Function Tables 04	Math Clip Art--Linear Function Concepts--Linear Function Tables 04 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on linear function tables. It presents a new version of the previous table, this time demonstrating that the common difference can also be zero. This concept introduces students to constant functions, a special case of linear functions where the output remains the same regardless of the input.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Function Tables 05	Math Clip Art--Linear Function Concepts--Linear Function Tables 05 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on the relationship between linear function tables and graphs. It shows both a data table and a linear graph of data points, demonstrating that the graph of a Linear Function Table is a series of collinear points. This visual representation helps students connect tabular and graphical representations of linear functions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Function Tables 06	Math Clip Art--Linear Function Concepts--Linear Function Tables 06 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on linear function tables and their corresponding graphs. It presents a variation of the previous image with a new set of data, demonstrating that when the common difference is positive, the orientation of the graph is upward from left to right. This helps students understand the concept of positive slope in linear functions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Function Tables 07	Math Clip Art--Linear Function Concepts--Linear Function Tables 07 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on linear function tables and their corresponding graphs. It shows a variation of the previous image with a new set of data, demonstrating that when the common difference is negative, the orientation of the graph is downward from left to right. This helps students understand the concept of negative slope in linear functions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Function Tables 08	Math Clip Art--Linear Function Concepts--Linear Function Tables 08 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on linear function tables and their corresponding graphs. It presents a variation of the previous image with a new set of data, showing that when the common difference is zero, the orientation of the graph is horizontal. This helps students understand the concept of zero slope in linear functions, also known as constant functions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Function Tables 09	Math Clip Art--Linear Function Concepts--Linear Function Tables 09 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on linear function tables. It shows a variation of the previous image with a new set of data, demonstrating that data gathered in a table can show a linear pattern. This concept helps students understand how to identify linear relationships from tabular data.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Function Tables 10	Math Clip Art--Linear Function Concepts--Linear Function Tables 10 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on linear function tables and equations. It continues from the previous image, now including the equation f(x) = 0.5x - 3. This demonstrates that when a data set shows a linear pattern, it can be modeled by a linear function equation. This concept helps students understand the connection between tabular data and algebraic representations of linear functions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 1	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 1 Topic Linear Functions Description This image serves as a title card for a series of 10 clip art images that explore graphs of linear functions. It sets the stage for understanding how linear functions can be represented and analyzed graphically, introducing students to the visual aspect of these mathematical concepts. Using visual aids like this title card can help engage students and prepare them for the upcoming content. It provides a clear introduction to the topic and helps organize the learning material in a visually appealing way.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 10	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 10 Topic Linear Functions Description This image is the final in a series illustrating key concepts in linear functions, focusing on the special case of vertical lines. It presents a variation of the previous image, now including a vertical line in the graph to demonstrate an important exception in linear functions. The image highlights that vertical lines are the only orientation not allowed in standard linear functions. This concept is crucial for students to understand the limitations of the slope-intercept form and to recognize when they need to use alternative representations.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 2	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 2 Topic Linear Functions Description This image presents a data table alongside a linear graph with the slope and y-intercept labeled. It demonstrates the connection between tabular data and graphical representation of linear functions, helping students understand how numerical values translate into visual patterns. By incorporating this visual aid, teachers can enhance students' comprehension of the relationship between data points and their graphical representation. This image serves as a bridge between algebraic and geometric interpretations of linear functions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 3	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 3 Topic Linear Functions Description This image displays the general form of the slope-intercept equation (y = mx + b) with definitions of m and b. It provides a crucial link between the algebraic representation of linear functions and their graphical interpretation, helping students understand how each component of the equation affects the graph. Using this visual aid can significantly enhance students' understanding of the slope-intercept form and its relationship to linear graphs. It serves as a reference point for discussing how changes in m and b impact the line's appearance on a coordinate plane.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 4	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 4 Topic Linear Functions Description This image continues from the previous one, now with labeled slope and y-intercept. It provides a visual breakdown of the general equation for a linear function, helping students understand this fundamental concept in a step-by-step manner. By using this visual aid, teachers can guide students through the process of understanding the slope-intercept form, reinforcing the connection between the algebraic definition and its graphical representation. This image is particularly useful for students who benefit from seeing mathematical concepts broken down into clear, visual steps.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 5	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 5 Topic Linear Functions Description This image continues from the previous one, showing the slope calculation ratio. It demonstrates the importance of expressing slope as a ratio, which can help students more easily interpret and compare different linear functions. Incorporating this visual aid into lessons can help reinforce the concept of slope simplification and its importance in analyzing linear functions. It provides a clear example of how mathematical operations can be applied to make expressions more manageable and meaningful.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 6	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 6 Topic Linear Functions Description This image presents a variation of the previous image with the y-intercept highlighted. It emphasizes the significance of the y-intercept in linear functions, helping students understand its role in determining where the line crosses the y-axis. By using this visual aid, teachers can draw attention to the y-intercept and its importance in interpreting linear functions. This image can help students connect the 'b' value in the slope-intercept form to its graphical representation, enhancing their understanding of how equations relate to graphs.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 7	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 7 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on the domain of linear functions. It continues from the previous images in the series, now highlighting the concept of domain in linear functions. The image presents a continuation of the previous graph with the domain identified. This visual representation helps students understand that the domain of a linear function extends infinitely in both directions on the x-axis.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 8	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 8 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on the range of linear functions. It presents a variation of the previous image, now highlighting the concept of range in linear functions. The image shows a variation of the previous graph with a label for the range. This visual aid helps students understand that the range of a linear function, like its domain, extends infinitely in both directions, but on the y-axis.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 9	Math Clip Art--Linear Functions Concepts--Graphs of Linear Functions 9 Topic Linear Functions Description This image is part of a series illustrating key concepts in linear functions, focusing on the various orientations of linear functions. It shows the slope-intercept equation alongside several linear graphs, emphasizing the infinite possibilities for linear function orientations. The image demonstrates that linear functions can have an infinite number of orientations, extending infinitely in all directions. This concept helps students understand the versatility and wide-ranging applications of linear functions in modeling real-world relationships.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 1	Math Clip Art--Linear Functions Concepts--Linear Function Representations 1 Topic Linear Functions Description This image serves as a title card for a series of 14 clip art images that explore ways of presenting linear functions (equations, graphs, and tables). It sets the stage for understanding various representations of linear functions, providing a visual introduction to this important mathematical concept. Using visual aids like this title card can help engage students and prepare them for the upcoming content. It provides a clear introduction to the topic and helps organize the learning material in a visually appealing way.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 10	Math Clip Art--Linear Functions Concepts--Linear Function Representations 10 Topic Linear Functions Description This image presents a more general form of a Linear Function Machine, represented by ax + b. It introduces students to the standard form of a linear function, helping them understand how different parameters affect the function's behavior. By incorporating this visual aid, teachers can help students see the connection between the function machine concept and the slope-intercept form of a linear equation. This image is particularly useful for discussing how 'a' and 'b' affect the graph of the function.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 11	Math Clip Art--Linear Functions Concepts--Linear Function Representations 11 Topic Linear Functions Description This image presents a function rule and its corresponding function equation for f(x) = 2x + 3. It demonstrates how a verbal description of a linear function can be translated into a mathematical equation, helping students bridge the gap between conceptual understanding and algebraic representation of linear functions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 12	Math Clip Art--Linear Functions Concepts--Linear Function Representations 12 Topic Linear Functions Description This image presents a variation of the previous image, now showing the function f(x) = 3x + 4. It provides another example of how a function rule can be written as an equation, reinforcing the concept of translating verbal descriptions into mathematical expressions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 13	Math Clip Art--Linear Functions Concepts--Linear Function Representations 13 Topic Linear Functions Description This image shows the equation and graph of f(x) = 2x, demonstrating how a linear function equation can be graphed on an x-y coordinate plane. It provides a visual representation of the relationship between the algebraic and geometric aspects of linear functions. By using this visual aid, teachers can help students understand how the components of a linear function equation relate to its graph. This image is particularly useful for discussing concepts such as slope, y-intercept, and the meaning of x and y in the context of a graph.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 14	Math Clip Art--Linear Functions Concepts--Linear Function Representations 14 Topic Linear Functions Description This image presents a variation of the previous image, now showing the equation and graph of f(x) = x + 3. It provides another example of how a function equation can be represented graphically, allowing students to compare and contrast different linear functions. By incorporating this visual aid, teachers can help students understand how changes in the equation affect the graph of a linear function. This image is particularly useful for discussing the effects of slope and y-intercept on the position and steepness of the line.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 2	Math Clip Art--Linear Functions Concepts--Linear Function Representations 2 Topic Linear Functions Description This image presents a function mapping and a table of values, illustrating how a linear function takes input values and maps them to unique output values. It helps students understand the fundamental concept of functions and their representation in tabular form. By incorporating this visual aid, teachers can enhance students' comprehension of the input-output relationship in linear functions. This image serves as a bridge between the abstract concept of functions and their concrete representation in tables.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 3	Math Clip Art--Linear Functions Concepts--Linear Function Representations 3 Topic Linear Functions Description This image shows a function table alongside a linear graph, demonstrating how the input-output values from a linear function table can be graphed as x-y coordinates that form a line. It helps students visualize the connection between tabular and graphical representations of linear functions. By using this visual aid, teachers can help students understand how to translate data from a table into a graph. This image is particularly useful for students who benefit from seeing the direct relationship between different representations of the same function.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 4	Math Clip Art--Linear Functions Concepts--Linear Function Representations 4 Topic Linear Functions Description This image presents two data tables with common differences highlighted, illustrating that in a linear function, the output values have a common difference. This concept is crucial for understanding the constant rate of change in linear functions. By incorporating this visual aid, teachers can help students recognize patterns in linear functions and understand how these patterns relate to the function's behavior. This image is particularly useful for introducing the concept of slope in a tabular context.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 5	Math Clip Art--Linear Functions Concepts--Linear Function Representations 5 Topic Linear Functions Description This image shows a simple function machine, introducing the concept of a Linear Function Machine. It provides a visual representation of how a function takes an input and produces an output, which is particularly helpful for students who benefit from concrete analogies. By using this visual aid, teachers can help students understand the basic concept of a function as a process that transforms inputs into outputs. This image serves as a foundation for more complex function machines and can help students grasp the idea of function composition.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 6	Math Clip Art--Linear Functions Concepts--Linear Function Representations 6 Topic Linear Functions Description This image presents a function machine that outputs twice the value of the input, illustrating a specific example of a linear function. It helps students understand how a simple rule can be applied to transform input values into output values. By incorporating this visual aid, teachers can help students see the connection between the function machine concept and algebraic representations of linear functions. This image is particularly useful for introducing the idea of slope in a concrete, visual way.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 7	Math Clip Art--Linear Functions Concepts--Linear Function Representations 7 Topic Linear Functions Description This image shows the same function machine from the previous image, now with three different input-output examples. It demonstrates how a single function rule can be applied to various input values, reinforcing the concept of a function as a consistent transformation of inputs to outputs. By using this visual aid, teachers can help students understand how a single function rule applies across different input values. This image is particularly useful for helping students see patterns and predict outputs for given inputs.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 8	Math Clip Art--Linear Functions Concepts--Linear Function Representations 8 Topic Linear Functions Description This image presents a variation of the previous image, showing other Linear Function Machine examples. It helps students understand that there are many different types of linear functions, each with its own unique rule for transforming inputs into outputs. By incorporating this visual aid, teachers can expand students' understanding of the variety of linear functions. This image is particularly useful for demonstrating how different rules lead to different relationships between inputs and outputs.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Linear Function Representations 9	Math Clip Art--Linear Functions Concepts--Linear Function Representations 9 Topic Linear Functions Description This image shows a function rule and its corresponding function equation for f(x) = 2x. It illustrates how a verbal description of a function rule can be translated into a mathematical equation, bridging the gap between conceptual understanding and algebraic representation. By using this visual aid, teachers can help students make the connection between the intuitive understanding of a function's behavior and its formal mathematical expression. This image is particularly useful for introducing the concept of variable notation and function notation.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Point-Slope Form 1	Math Clip Art--Linear Functions Concepts--Point-Slope Form 1 Topic Linear Functions Description This image serves as a title card for a series of 9 clip art images that explore using the point-slope form to find a linear equation and graph. It sets the stage for understanding this important representation of linear functions, providing a visual introduction to the concept. Using visual aids like this title card can help engage students and prepare them for the upcoming content. It provides a clear introduction to the topic and helps organize the learning material in a visually appealing way.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Point-Slope Form 2	Math Clip Art--Linear Functions Concepts--Point-Slope Form 2 Topic Linear Functions Description This image presents a linear graph with a stair step showing the rise over the run, illustrating the concept of slope. It introduces the idea that knowing the slope of a line and the coordinates of a point on the line allows us to find the equation in slope-intercept form. By incorporating this visual aid, teachers can help students understand the connection between the graphical representation of slope and its use in forming equations. This image is particularly useful for bridging the gap between visual and algebraic representations of linear functions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Point-Slope Form 3	Math Clip Art--Linear Functions Concepts--Point-Slope Form 3 Topic Linear Functions Description This image continues from the previous one, now labeling two coordinates on the graph and showing the general form of the slope formula. It emphasizes that typically, the slope formula is used when two points on the line are known. By using this visual aid, teachers can help students understand how the slope formula relates to points on a line. This image is particularly useful for reinforcing the concept of slope calculation before introducing the point-slope form.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Point-Slope Form 4	Math Clip Art--Linear Functions Concepts--Point-Slope Form 4 Topic Linear Functions Description This image presents a variation of the previous graph, now with one coordinate highlighted. It introduces the case where the coordinates of one point are known, along with the slope of the line. This scenario sets the stage for introducing the point-slope form of a linear equation. By incorporating this visual aid, teachers can help students transition from the two-point slope formula to the point-slope form. This image is particularly useful for demonstrating how different pieces of information about a line can be used to determine its equation.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Point-Slope Form 5	Math Clip Art--Linear Functions Concepts--Point-Slope Form 5 Topic Linear Functions Description This image continues from the previous one, showing a rearrangement of the slope formula to derive the point-slope form. It demonstrates how algebraic manipulation can lead to a new, useful form of a linear equation. By using this visual aid, teachers can guide students through the process of deriving the point-slope form. This image is particularly useful for students who benefit from seeing the step-by-step transformation of mathematical expressions.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Point-Slope Form 6	Math Clip Art--Linear Functions Concepts--Point-Slope Form 6 Topic Linear Functions Description This image continues from the previous one, now showing the single coordinate values plugged into the point-slope equation. It demonstrates how to use the point-slope form when you know the coordinates of one point and the slope of the line. By incorporating this visual aid, teachers can help students understand how to apply the point-slope form in practice. This image is particularly useful for bridging the gap between the abstract form of the equation and its practical application.	Graphs of Linear Functions and Slope-Intercept Form
Math Clip Art--Linear Functions Concepts--Point-Slope Form 7	Math Clip Art--Linear Functions Concepts--Point-Slope Form 7 Topic Linear Functions Description This image presents a graph crossing the origin and the corresponding point-slope form. It provides the simplest example of using the point-slope form, where a line passes through the origin (0,0) with a slope of 1. By using this visual aid, teachers can help students understand the point-slope form in its most basic application. This image is particularly useful for building confidence before moving on to more complex examples.	Graphs of Linear Functions and Slope-Intercept Form

Illustrative Math Alignment: Grade 8 Unit 3

Functions and Volume

Lesson 8: Linear Functions

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