Questions: The inverse of the function (f(x)=frac12 x+10) is shown.
[ h(x)=2 x-square ]
What is the missing value?
1
5
10
20
Transcript text: The inverse of the function $f(x)=\frac{1}{2} x+10$ is shown.
\[
h(x)=2 x-\square
\]
What is the missing value?
1
5
10
20
Solution
Solution Steps
To find the inverse of the function \( f(x) = \frac{1}{2}x + 10 \), we need to solve for \( x \) in terms of \( y \) and then express \( x \) as a function of \( y \). This will give us the inverse function \( h(x) \).
Solution Approach
Start with the equation \( y = \frac{1}{2}x + 10 \).
Solve for \( x \) in terms of \( y \).
Replace \( y \) with \( x \) to get the inverse function \( h(x) \).
Step 1: Define the Original Function
The original function is given by
\[
f(x) = \frac{1}{2}x + 10.
\]
Step 2: Set Up the Equation for the Inverse
To find the inverse, we set
\[
y = \frac{1}{2}x + 10.
\]
Step 3: Solve for \( x \)
Rearranging the equation to solve for \( x \):
\[
y - 10 = \frac{1}{2}x \implies x = 2(y - 10) = 2y - 20.
\]
Step 4: Express the Inverse Function
Replacing \( y \) with \( x \) gives us the inverse function:
\[
h(x) = 2x - 20.
\]
Final Answer
The missing value in the inverse function is \\(\boxed{20}\\).