Trey C.

asked • 10/07/18# For his services, a private investigator requires a $450 retainer fee plus $100 per hour.

Let x represent the number of hours the investigator spends working on a case.

(a) Find a function f that models the investigator's fee as a function of x.

f(x) =

(b) Find

f ^−1.

f ^−1(x) =

(a) Find a function f that models the investigator's fee as a function of x.

f(x) =

(b) Find

f ^−1.

f ^−1(x) =

PLEASE HELP

More

## 1 Expert Answer

To find the inverse you switch x and y

so x=100y+450

x - 450 =100y

f_1(x) = (x-450)/100

Lauren H.

Thanks for that explanation Stephen. It helps me recapture so much lost math to read other people's solutions.

Report

10/07/18

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Lauren H.

10/07/18