Answer:
f^-1 (x) = 1/5 x +2
Step-by-step explanation:
To find the inverse exchange x and y and solve for y
y = 5x-10
Exchange x and y
x =5y-10
Solve for y
Add 10 to each side
x+10 = 5y-10+10
x+10 = 5y
Divide by 5
(x+10)/5 = 5y/5
(x+10)/5 = y
The inverse
f^-1 (x) = (x+10)/5
f^-1 (x) = 1/5 x +2
