A line is drawn on a coordinate grid by the equation x = 5. Which of the following lines would represent a row perpendicular to it? A. a line containing the point (5,2) B. y = 5 C. x = 5 D. x = 3
Perpendicular means what will make a 90 degree angle off of it. We know that the line is X=5, which is a vertical line. Y=5 is a horizontal line. So when you have a vertical line, then put a horizontal line through it, you will get a 90 degree angle, meaning it is perpendicular.