Given that −7 ≤ x ≤ 3 and −5 ≤ y ≤ 12, what is the range ...

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PS · Problem Solving

505-555

Inequalities

Given that

−7 ≤ x ≤ 3

and

−5 ≤ y ≤ 12

, what is the range of the product xy?

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A

-84 ≤ xy ≤ 36

B

-42 ≤ xy ≤ 36

C

-36 ≤ xy ≤ 84

D

-15 ≤ xy ≤ 36

E

-7 ≤ xy ≤ 36

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Explanation

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