Homework Help: algebra

Posted by anonymous on Friday, January 4, 2013 at 1:02pm.

for the function f(x)=(3-4x)^2, find f-1. determine whether f-1 is a function

algebra - Steve, Friday, January 4, 2013 at 3:41pm
since f is a parabola, there are two values of x for each value of y.

So, f^-1 cannot be a function.

f^-1(x) = (3-√x)/4
algebra - anonymous, Saturday, January 5, 2013 at 10:37am
thanks for the help

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