Math Example--Linear Function Concepts--Linear Functions in Tabular and Graph Form: Example 13

Topic

Linear Functions

Description

This example illustrates the process of creating a table of x-y coordinates and graphing the linear function y = 0.5x + 4. The image presents both a graph and a table for this function. The table includes coordinate pairs (0, 4), (1, 4.5), (2, 5), (3, 5.5), and (4, 6), showing how the y-value increases by 0.5 for each unit increase in x.

Linear functions are essential in algebra as they represent relationships with a constant rate of change between variables. This collection of examples aids in teaching this topic by providing visual representations of various linear functions, enabling students to observe how changes in the equation affect both the graph and the table of values.

Exposing students to multiple worked-out examples is vital for a comprehensive understanding of linear functions. By examining different slopes, including fractional slopes, y-intercepts, and various combinations of these elements, students can develop a deeper insight into how these components influence the function's behavior.

Teacher's Script: Now, let's examine the function y = 0.5x + 4. What's different about this function compared to our previous examples? Notice the fractional slope. For every increase of 1 in x, y only increases by 0.5. How does this affect the steepness of our line? The y-intercept is 4, so where does our line cross the y-axis?

For a complete collection of math examples related to Linear Functions click on this link: Math Examples: Linear Functions in Tabular and Graph Form Collection.