Question

what is the Y intercept for a vertical line x equals 4

Answer 1

That's a trick question. The answer is: There is no Y intercept. A vertical line will never go across the Y axis unless the line was in X=0. As for the slope, it doesn't exist. You calculate the slope by dividing the change of Y by change of X. Since there is no change in X, it would be 0. It is IMPOSIBLE to divide by 0.

Answer 2

Answer:

There is no vertical intercept.

Step-by-step explanation:

The vertical line x = 4 never crosses the y axis and thus has no y-intercept.  Rather, the two lines are parallel.