Math Problem Statement

Use the graphs for f(x) and g(x) to evaluate the expressions: f(g(-2)), g(f(0)), f(-3), and g(g(-1)).

Solution

Let's solve the function composition problems from the graph provided in your image.

We have two graphs:

  • f(x)f(x) (left graph)
  • g(x)g(x) (right graph)

First, I'll evaluate each of the given expressions step by step:


1. f(g(2))f(g(-2))

  • Look at g(x)g(x) on the right graph:

    • When x=2x = -2, g(2)=1g(-2) = 1.
  • Now evaluate f(1)f(1) using the left graph:

    • When x=1x = 1, f(1)=4f(1) = 4.

So, f(g(2))=f(1)=4f(g(-2)) = f(1) = 4.


2. g(f(0))g(f(0))

  • Look at f(x)f(x) on the left graph:

    • When x=0x = 0, f(0)=2f(0) = 2.
  • Now evaluate g(2)g(2) using the right graph:

    • When x=2x = 2, g(2)=1g(2) = -1.

So, g(f(0))=g(2)=1g(f(0)) = g(2) = -1.


3. f(3)f(-3)

  • Look directly at f(x)f(x) on the left graph:
    • When x=3x = -3, f(3)=2f(-3) = -2.

So, f(3)=2f(-3) = -2.


4. g(g(1))g(g(-1))

  • Look at g(x)g(x) on the right graph:

    • When x=1x = -1, g(1)=3g(-1) = 3.
  • Now evaluate g(3)g(3) using the right graph:

    • When x=3x = 3, g(3)=2g(3) = 2.

So, g(g(1))=g(3)=2g(g(-1)) = g(3) = 2.


Final Answers:

  1. f(g(2))=4f(g(-2)) = 4
  2. g(f(0))=1g(f(0)) = -1
  3. f(3)=2f(-3) = -2
  4. g(g(1))=2g(g(-1)) = 2

Let me know if you have any questions or need further clarification.


Here are 5 additional questions based on this problem:

  1. How would you evaluate g(f(2))g(f(2))?
  2. What is the value of f(g(1))f(g(1))?
  3. If f(x)=g(x)f(x) = g(x), what is the value of f(x)f(x) at x=1x = -1?
  4. What is the result of g(f(2))g(f(-2))?
  5. How does the composition of functions change if f(x)f(x) is a quadratic function?

Tip: Remember, function composition means substituting the output of one function into the input of another. Be sure to evaluate each function step by step carefully!

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Math Problem Analysis

Mathematical Concepts

Function Composition
Graph Interpretation

Formulas

Function Composition: (f∘g)(x) = f(g(x))
Direct evaluation of f(x) and g(x) from graphs

Theorems

Function Composition Theorem

Suitable Grade Level

Grades 9-12