Question

What is the inverse of the function f(x) = 2x – 10? A. h(x) = 2x - 5

B. h(x) = 2x + 5 C. h(x) = 1/2x - 5 D. h(x) = 1/2x - 10

Answer 1

f^-1(x)=1/2x+5

Explanation:

y=2x-10

inteechange 'y' with 'x'

x=2y-10

make 'y' the subject

2y=x+10

divide by 2both sides

y=(x+10)÷2

y=1/2x+5

f^-1(x)=1/2x+5