Is the line through points P(7, 6) and Q(9, 11) perpendicular to the line through points R(5, 9) and S(7, 4)? Explain.

asked Jan 3, 2021 117k views

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1 vote

Answer:

Explanation:

$slope~of~line~PQ=(11-6)/(9-7)=(5)/(2)\\slope~of~line~RS,~m2=(4-9)/(7-5)=-(5)/(2) \\m1 * m2=(5)/(2) * -(5)/(2) =-(25)/(4) \\eq -1$

so lines are not perpendicular.

Northerner answered Jan 8, 2021

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