Find f-1(x) (-1 is an inverse function). Sketch the graphs of y=f(x) and y=f-1(x) on the same coordinate axes.

Answer for f(x)=2x+3

The answer I have is f-1(x)=x-3/2

Can someone just tell me if I was correct please?

Question

Find f-1(x) (-1 is an inverse function). Sketch the graphs of y=f(x) and y=f-1(x) on the same coordinate axes.

Answer for f(x)=2x+3

The answer I have is f-1(x)=x-3/2

Can someone just tell me if I was correct please?

anonymous · Answer

I have graphed the answer; however cannot figure exactly how to graph the other one.

anonymous · Answer

Take the original function y=2x+3. Solve for x, you have the inverse.

anonymous · Answer

y=2x+3
x=2y+3
x-3=2y
x/2-3/2=y