# Math Help - precalc

1. ## precalc

Find the indicated value, if f(x) = 4x - 17.

f -1(1)=

2. ## Inverse of a function

Find the indicated value, if f(x) = 4x - 17.

f -1(1)=
Use the same method as I showed you in http://www.mathhelpforum.com/math-he...ecalculus.html to find $f^{-1}(x)$, and then plug in the value x = 1.