use the alternate angles theorem to answer the question give the missing reason in this proof given a

y - 4 = 0

Step-by-step explanation:

They give you the y coordinate, 4, and the x coordinate as 0.

Put 4 in as y.

4 - 4 = 0. That means x = 0 and that is right.

To make sure it has a slope of zero, subtract 4 on both sides.

You get : y = 4. This means that the line will be straight and it will have a slope of zero.