Math Problem Statement
Find (f ∘ g)(-5) using the graphs of f(x) and g(x), where the blue and black curves represent f(x) and g(x), respectively.
Solution
The problem asks to find , which is the composition of the functions and , evaluated at .
Steps:
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Understand the composition: . We need to first evaluate , then use that result to find .
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Find : From the graph, the black curve represents . At , follow the curve to the y-value.
- Looking at the graph, the black curve passes through , so .
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Find : Now, use the blue curve (representing ) to find .
- From the graph, the blue curve passes through , so .
Thus, .
Final Answer:
Would you like more details or have any questions? Here are five related questions to consider:
- How do you determine and values from a graph?
- What are the properties of function composition?
- Can you explain how to graphically interpret ?
- How does the domain of a composite function differ from individual functions?
- What happens if a graph is not continuous—how does that affect composition?
Tip: Always follow the correct order when solving function compositions: evaluate the inner function first before applying the outer function.
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Math Problem Analysis
Mathematical Concepts
Function Composition
Quadratic Functions
Graph Interpretation
Formulas
(f ∘ g)(x) = f(g(x))
Theorems
Function Composition Theorem
Suitable Grade Level
Grades 9-12