Mathematics · May / June 2021 · Paper 22 · Question 17
0580
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Find the gradient of the line that is perpendicular to the line y x 3 4 5 = - . [2]
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– 3 4 or – 0.75 [2]
M1 for 4 5 x − y = or better 3 − 1 or for their gradient
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