Question

What is the inverse f(x)= 2x+1

Answer 1

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

Explanation:

f(x) = 2x + 1

y = 2x + 1

x = 2y + 1

2y + 1 = x

2y = x - 1

y = (x - 1)/2

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