Question

What is the inverse of the function y = -8x + 15?

A. y = 1/8x + 15

B. y = -8x - 15

C. y = (x - 15)/-8

D. y' '= -1/8x + 1/15

Answer 1

c) ( x-15)/-8

Explanation:

c) (x-15) / -8

Answer 2

Solution given:

y = -8x + 15

interchanging role of x and y

we get

x=-8y+15

solve for y

x-15=-8y

divide both side by-8

we get

-8y/-8=(x-15)/-8

y=(x-15)/-8

:.

C. y = (x - 15)/-8 is a required inverse.