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Question

find the gradient of a line pe
rpendicular to the line joining these pairs of points
(a) (1,2) and (5,-6)
(b) (2,4) and (3,8)
(c) (-2,1) and (2,-4)
3 years ago

Answers

oobleck
perpendicular lines have slopes which are negative reciprocals. So,
(a) slope = (-6-2)/(5-1) = -2 so ⊥ slope is 1/2
do the others in like wise
3 years ago

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