Math Problem Statement

Use the graphs for f(x) and g(x) to evaluate the expressions below: f(g(0)) and g(f(-5)). Write your answer as an integer or a reduced fraction.

Solution

Let's solve the two function composition problems from the graph step by step.

1. f(g(0))f(g(0))

First, let's find g(0)g(0):

  • Looking at the graph of g(x)g(x), when x=0x = 0, we can see that g(0)=1g(0) = 1.

Now, we need to find f(g(0))f(g(0)), which is f(1)f(1):

  • From the graph of f(x)f(x), when x=1x = 1, we can see that f(1)=1f(1) = 1.

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

2. g(f(5))g(f(-5))

First, let's find f(5)f(-5):

  • Looking at the graph of f(x)f(x), when x=5x = -5, we can see that f(5)=3f(-5) = 3.

Now, we need to find g(f(5))g(f(-5)), which is g(3)g(3):

  • From the graph of g(x)g(x), when x=3x = 3, we can see that g(3)=3g(3) = -3.

So, g(f(5))=3g(f(-5)) = -3.

Final answers:

  • f(g(0))=1f(g(0)) = 1
  • g(f(5))=3g(f(-5)) = -3

Would you like more details on how to interpret these graphs or the composition of functions? Here are some related questions for further practice:

  1. What is f(g(2))f(g(2))?
  2. What is g(f(0))g(f(0))?
  3. What is f(g(3))f(g(-3))?
  4. How does the graph of a composition f(g(x))f(g(x)) look compared to f(x)f(x) and g(x)g(x)?
  5. Can function compositions always be evaluated using graphs?

Tip: When dealing with function compositions, always work from the inside out—evaluate the innermost function first, then proceed outward.

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Math Problem Analysis

Mathematical Concepts

Function Composition
Graph Interpretation

Formulas

f(g(x))
g(f(x))

Theorems

Function Composition Theorem

Suitable Grade Level

Grades 9-12