Question

What is the difference between the slopes of parallel and perpendicular lines?

a- Parallel lines have the same slopes while perpendicular lines have a slope of 0

b- Perpendicular lines have slopes that are negative reciprocals of each other and parallel lines have the same slope

c- Perpendicular lines have slopes that are negative reciprocals of each other and parallel lines have slopes that equal 1

d- The slopes of parallel lines and perpendicular lines have no relationship

Answer 1

parallel line -- have same slope
perp lines -- have negative reciprocal slopes

Answer 2

It is b, btw.