What is the sign of 3xy when x > 0 and y < 0

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What is the sign of 3xy when x > 0 and y < 0

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Khánh Gia 5 years 2021-08-03T23:00:53+00:00 1 Answers 74 views 0

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  1. thanhcong
    0
    2021-08-03T23:02:35+00:00
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    Numbers which are bigger than 0 are defined as positive numbers and have a prefix of + (plus).

    Numbers which are smaller than 0 are defined as negative numbers and have a prefix of – (minus).

    Let say number a is equal to the expression,

    Since y is negative we can change its prefix to -,

    Any number (in this case 3x) multiplied by negative number will produce a negative number.

    Therefore the sign or prefix of number a will be -.

    Hope this helps.

    r3t40

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