Question

Given a function described as the equation y = 4x - 4, what is y when x is 1, 2, and 3?​

Answer 1

When x= 1

y = 4(1) - 4

y = 0

when x = 2

y = 4(2) - 4

y = 4

when x = 3

y = 4(3) - 4

y = 8

Answer 2

f(1) = 0

f(2) = 4

f(3) = 8

Explanation:

Substitute the values for the variable x.

`f(1)=4(1)-4\\f(1)=4-4\\f(1)=0\\\\f(2)=4(2)-4\\f(2)=8-4\\f(2)=4\\\\f(3)=4(3)-4\\f(3)=12-4\\f(3)=8`