Question

Which of the following ordered pairs represents the x-intercept of the equation y = 2x - 8?

Answer 1

Y=2x-8, so ti find the x-intercept, you would plug zero into y and solve for x:

0=2x-8 plug 0 in for y and now add 8 to both sides 
8=2x now you have to divide by 2
4=x
(4,0)

Answer 2

The answer is (0,-8)