Question

Write an equation of the line passing through point P that is perpendicular to the given line:

P(6, 0) y=4

Answer 1

x=6

Explanation:

Answer 2

Explanation:

This is one of those things that will drive you insane until you understand the answer.

Every y value is 4 no matter what x is.

The perpendicular will meet y = 4 at the point (6,4)

Answer: So the equation has to be x = 6.

The blue line is y = 4

The red line is x = 6

The point of intersection is marked.