Math Problem Statement

The original graph of the function y = f(x) is shown. Select the table that represents y = f(-x).

Solution

The problem asks for the correct table representation of the function y=f(x)y = f(-x) based on the graph of the original function y=f(x)y = f(x).

Key concept:

When you substitute x-x into the function, you reflect the graph of f(x)f(x) across the y-axis. This means that the output values will remain the same, but the input values (x-values) will change signs. Specifically:

  • If f(a)=bf(a) = b, then f(a)=f(a)=bf(-a) = f(a) = b.

To analyze the tables:

We look for the table where the x-values have been reflected, but the corresponding f(x)f(x) values are unchanged.

Steps:

  • If f(x)=2f(x) = -2 when x=1x = 1, then f(1)=2f(-1) = -2.
  • If f(x)=0f(x) = 0 when x=2x = 2, then f(2)=0f(-2) = 0.
  • If f(x)=2f(x) = -2 when x=3x = 3, then f(3)=2f(-3) = -2.

Looking at the four options, the correct table is the third one:

x & f(-x) \\ \hline -1 & -2 \\ -2 & 0 \\ -3 & -2 \\ \end{array}$$ This correctly reflects the x-values and keeps the $$f(x)$$ values the same. ### Answer: The third table is the correct representation of $$y = f(-x)$$. Would you like more details, or do you have any further questions? Here are 5 follow-up questions related to this concept: 1. What happens to the graph of a function when you reflect it over the y-axis? 2. Can you find a function that remains the same after reflecting over the y-axis? 3. How do you reflect a graph over the x-axis, and what would that look like in a table? 4. What is the effect on the graph if you reflect both over the x- and y-axes? 5. How would the table look if the transformation were $$y = -f(-x)$$? **Tip:** When transforming functions, pay attention to whether the change is applied to the x-values or y-values, as this determines whether the transformation affects the horizontal or vertical positioning.

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Math Problem Analysis

Mathematical Concepts

Algebra
Functions
Graph Transformations

Formulas

f(-x) represents a reflection of f(x) across the y-axis

Theorems

Graph reflection across the y-axis

Suitable Grade Level

Grades 9-11