Question

Which line has an x-intercept of 4?
4x+y=8
-4x + y= 8
2x+ 2y = -8
-2x+2y= -8

Answer 1

-2x+2y=-8

-2x+2(0)=-8

-2x=-8

x=-8/-2

x=4

(4,0)

Answer 2

Answer: Choice D) -2x+2y = -8

=======================================================

Step-by-step explanation:

If we plug in y = 0 and solve for x, we'll get the x intercept.

Doing so for choice A has us get

4x+y = 8

4x+0 = 8

4x = 8

x = 8/4

x = 2

So the x intercept is 2. We can rule out choice A

Through similar steps, choice B has an x intercept of x = -2, so we can rule that out as well.

Choice C leads to x = -4, so that's not the answer either.

Choice D has an x intercept of x = 4 since,

-2x+2y = -8

-2(4)+2(0) = -8

-8+0 = -8

-8 = -8

So that confirms choice D is the answer.