ANSWER:
What function is 2x?
Solve Using Algebra:
The function: f(x) 2x+3
Subtract 3 from both sides: y-3 2x
Divide both sides by 2: (y-3)/2 x
Swap sides: x (y-3)/2
Solution (put "f-1(y)" for "x") : f-1(y) (y-3)/2
(SEE IMAGE!)
