Question

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

Answer 1

f^-1(x)=1/2x-3/2

Explanation:

f(x)=2x+3

y=2x+3

x=2y+3

2y+3=x

2y=x-3

y=1/2x-3/2

substitute f^-1(x) for y

f^-1(x)=1/2x-3/2