Question

Find the inverse (f^-1(x)) of the function f(x)=5+1/2x

Answer 1

f^-1(x) = 2x - 10

Explanation:

f(x) = 5 + 1/2 x

y = 5 + 1/2 x

x = 5 + 1/2 y

1/2 y = x - 5

y = 2x - 10

f^-1(x) = 2x - 10