Geometry level one

Question

Line perpendicular to x=4 passing through the point (-2,3)

Answer 1

x = 4 is a vertical line, so a line perpendicular to it will be horizontal and have the form y= k, where k is some constant.

For this line to pass through ( -2 , 3 ), k must equal this y-coordinate.

So, y = 3 is the line we seek.