Question

What function is the inverse of f(x) = 2x + 3 ?

Answer 1

Answer:

Step-by-step explanation:

f(x) = 2x + 3.....change f(x) to y

y = 2x + 3.....switch the x and y and solve for y

x = 2y + 3

(x - 3) = 2y

(x - 3) / 2 = y or y = 1/2x - 3/2 <===

can be written as : f-1(x) = (x - 3) / 2....f-1(x) is the inverse