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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) =
 
PLEASE HELP

Lauren H.

I forgot all my calc, but, here's the beginning: 
f(x) = 100x + 450
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10/07/18

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