# precalc

• Feb 21st 2009, 11:32 PM
precalc
Find the indicated value, if f(x) = 4x - 17.

f -1(1)=
• Feb 22nd 2009, 01:07 AM
Inverse of a function
Quote:

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.