Algebra practice question

Answer: -2

Increasing x by 5 raises 2x by 10, so 5y must fall by 10 and y falls by 2.

Common wrong answers

If you answered 2

2 has the sign wrong; y decreases.

If you answered -10

−10 is the change in 5y, not in y.

If you answered -5

−5 copies the change in x.

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