Algebra practice question

Answer: 6

The perpendicular slope is −1/4, so L(x) = 8 − x/4 and L(8) = 8 − 2 = 6.

Common wrong answers

If you answered 10

10 uses slope +1/4.

If you answered 40

40 uses slope 4 (parallel, not perpendicular).

If you answered -24

−24 uses slope −4.

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