Answer:
Step-by-step explanation:
Give f(x) = 7x+8, to find its inverse, the following steps should be followed.
Step 1: let y = f(x)
y = 7x+8
Step 2:
Replace y with x and x with y
x = 7y+8
Step 3:
Make y the subject of the formula;
7y = x-8
Step 4:
Divide both sides by 7
7y/7 = (x-8)/7
y = (x-8)/7
Replace y with f^-1(x)
The inverse of the function is (x-8)/7
f^-1(x) = (x-8)/7
