Question

Find the inverse of the function:

f(x)=1/2 x + 9

(if its possible please show steps)

Answer 1

y = 2x - 18

Explanation:

replace the f(x) for y

y = 1/2 x + 9

switch y and x

x = 1/2y + 9

solve for y

subract 9

x - 9 = 1/2y

divide by 1/2 or multiply by the reciprocal (2)

y = 2x -18