## kaylaprincess one year ago Check my work with finding the inverse function? f(x) = 2x + 3 Replace the function notation f of x with y y = 2x + 3 Now, reverse the x and y variables x = 2y + 3 Solve for y by isolating it on one side of the equal sign. -3 + x = 2y Divide each side by 2 -3 + x /2 = y Replace y with the inverse function notation. -3 + x/2 = f^-1(x)

1. jim_thompson5910

Did you mean $\Large f^{-1}(x) = -3 + \frac{x}{2}$ OR did you mean $\Large f^{-1}(x) = \frac{-3+x}{2}$

2. kaylaprincess

second one

3. anonymous

the second one is correct

4. kaylaprincess

YEEEEEE yes thank you !

5. jim_thompson5910

Agreed. The second one is the inverse.

6. kaylaprincess

thank you! kait could you medal jim for me? Btw i also have a question that goes a little more in depth that i'm having trouble with, care to give it a look? :-)