Hi fellows,
If we have 2<x<5 and -8<y<8 then can we say -16<xy<40?
My concern is if we multiply x and y and 2 and -8, the sign would flip or not? I am a bit confused.
Any suggestion?
Thanx a lot.
If we have 2<x<5 and -8<y<8 then can we say -16<xy<40?
My concern is if we multiply x and y and 2 and -8, the sign would flip or not? I am a bit confused.
Any suggestion?
Thanx a lot.