Math Problem Statement

The values in the table define the function f(x). If g(x) is the inverse of f(x), what is the value of g(1)?

xf(x)

-1

-3

1

-1

4

1

6

4

7

6

 A. 

1

 B. 

2

 C. 

3

 D. 

4

 E. 

5

Solution

To solve for g(1)g(1), where g(x)g(x) is the inverse of f(x)f(x), we need to recall that if g(x)g(x) is the inverse of f(x)f(x), then:

g(f(x))=xandf(g(x))=xg(f(x)) = x \quad \text{and} \quad f(g(x)) = x

This means that g(1)g(1) is the xx-value such that f(x)=1f(x) = 1.

From the table of f(x)f(x):

f(-1) &= -3 \\ f(1) &= -1 \\ f(4) &= 1 \\ f(6) &= 4 \\ f(7) &= 6 \end{aligned}$$ We can see that $$f(4) = 1$$. Therefore, $$g(1) = 4$$. Thus, the value of $$g(1)$$ is: $$\boxed{4}$$ Would you like a detailed breakdown or have any further questions? Here are 5 related questions for practice: 1. If $$f(x) = -1$$, what is $$g(-1)$$? 2. Find $$f(g(4))$$ using the table. 3. If $$h(x)$$ is the inverse of $$g(x)$$, what is the value of $$h(4)$$? 4. For what value of $$x$$ does $$f(x) = -3$$? 5. Can you determine $$g(-3)$$ from the table? **Tip:** For inverse functions, always swap the input and output values of the original function.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Functions
Inverse Functions
Tables of Values

Formulas

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

Theorems

Inverse Function Theorem

Suitable Grade Level

Grades 8-10