CPM Homework Help : CCA Problem 11-29

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11-29.

For each function, find the inverse function.

$f(x)=\frac{x}{3}−2$
Step 1(a):
List the steps for this function.
1) Divide by $3$ .
2) Subtract $2$ .
Step 2(a):
Change each step to its inverse operation.
1) Multiply by $3$ .
2) Add $2$ .
Step 3(a):
Reverse the order of the steps.
1) Add $2$ .
2) Multiply by $3$ .
Step 4(a):
Write an inverse equation for the new steps.
Answer (a):
$f^1(x)=3(x+2)$

$g(x)=\frac{1}{2}x+5$
Hint (b):
Follow the steps in part (a).

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