Math Example--Function Concepts--Domain and Range of a Function--Example 3

Topic

Arithmetic

Description

The example demonstrates determine the domain and range for a linear function with equal input and output values. display results in a graph and identify the domain and range. This is illustrated by the accompanying image, which shows plot points using the input-output pairs. the domain is the x-coordinates in ascending order: {-2, -1, 0, 1, 2}. The range matches the domain as it mirrors the values of x: {-2, -1, 0, 1, 2}. This function demonstrates a one-to-one correspondence between x and f(x), resulting in identical domain and range values.

Functions are a fundamental concept in mathematics, providing students with an understanding of how different mathematical relationships can be analyzed and represented. By exploring these examples, students gain hands-on experience in identifying key attributes of functions.

Seeing multiple worked-out examples helps students understand patterns and variations in problem-solving. This scaffolds their learning and builds confidence in handling complex scenarios.

Teacher’s Script: In this example, notice how we analyze the relationship between the input values and their corresponding outputs. Observe how the graph helps to visually identify the domain and range. Use the image to determine the specific attributes discussed.

For a complete collection of math examples related to Functions click on this link: Math Examples: Domain and Range Collection.