Question

Line a is perpendicular to line b, and neither line is vertical. Which statement(s) below are TRUE? I: The slopes of line a and line b are the same. II: One line has a positive slope, the other line has a negative slope. III: Line a and line b will never intersect. IV: The slope of one of the lines is undefined.

Answer 1

Answer: One line has a positive slope, and the other has a negative slope.

Explanation: When lines are perpendicular, that means their slopes are the exact opposite of each other because they intersect at a right angle.