CPM Homework Help : INT2 Problem 10-10

Kent solves for the inverse of $f(x) = 2x + 3$ and determines $f^{-1}(x) =\frac { 1 } { 2 }x - 3$ . Is Kent correct? Explain.

Hint:

To find an inverse equation switch $x$ to $y$ $($ or $f(x))$ and solve for $y$ .

Answer:

Kent is not correct.