SAT Math Practice Question #31745 - SATify | SATify

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SAT Math Practice Question #31745 - SATify | SATify

#31745

linear equations

slopes

coordinate geometry

medium

90 sec

Which of the following pairs of lines are perpendicular?

I. $y = 3 x + 5$ and $y = - 3 x - 2$
II. $2 x + 4 y = 8$ and $y = 2 x + 1$
III. $x - 5 y = 10$ and $5 x + y = 3$

A.

I only

B.

II only

C.

III only

D.

II and III