Princeton Review

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Math Example: Absolute Value Functions: Example 19

Math Example: Absolute Value Functions: Example 19

Graph of y = abs(-4x - 1) + 4

Topic

Special Functions

Description

The image shows a graph of the absolute value function y = |-4x - 1| + 4. The vertex is marked at (-0.25, 4), and the graph opens upwards, narrower than y = |x|. This example illustrates how a negative coefficient with a larger absolute value, a constant inside the absolute value, and adding a constant outside affect the graph's steepness, horizontal position, and vertical position. Absolute value functions are a fundamental concept in algebra, introducing students to equations that involve taking the absolute value of a variable or expression. This example demonstrates how multiple changes in the equation impact the resulting graph's shape, steepness, and position. Providing multiple worked-out examples is crucial for students to fully comprehend the concept of absolute value functions. By examining different scenarios, students can identify patterns and develop a deeper understanding of how these functions behave. This approach helps reinforce important concepts such as the characteristic V-shape of absolute value graphs, the impact of negative coefficients with larger absolute values on the graph's steepness, how constants inside the absolute value affect the horizontal position, and how constants outside the absolute value influence the vertical position. Through repeated exposure to diverse examples, students can build intuition and improve their ability to analyze and graph absolute value functions independently.

For a complete collection of math examples related to Special Functions: Absolute Value Functions click on this link: Math Examples: Special Functions: Absolute Value Functions Collection.

Common Core Standards CCSS.MATH.CONTENT.HSF.IF.C.7.B
Grade Range 6 - 12
Curriculum Nodes Algebra
    • Functions and Relations
        • Special Functions
Copyright Year 2013
Keywords function, graph, vertex, vertices