What is the sign of 3xy when x>0 and y<0? Question What is the sign of 3xy when x>0 and y<0? in progress 0 Math Aaliyah 6 days 2021-09-10T10:44:48+00:00 2021-09-10T10:44:48+00:00 1 Answer 0

## Answers ( )

Let see.

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.

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