Algebra practice question

Answer: -3/2 or -1.5

Perpendicular slopes multiply to −1, so the slope is −3/2.

Common wrong answers

If you answered 3/2

3/2 is the reciprocal without the sign change.

If you answered -2/3

−2/3 changes the sign without inverting.

If you answered 2/3

2/3 is the slope of l itself.

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