Asked by Nate
Line m passes through points (4, 9) and (2, 2). Line n passes through points (2, 2) and (6, 7). Are line m and line n parallel or perpendicular?
Answers
Answered by
R_scott
find the slopes of the lines
parallel lines have the same slope
perpendicular lines have slopes that multiply to -1
parallel lines have the same slope
perpendicular lines have slopes that multiply to -1