Question

@ganeshie8
Which expressions, when evaluated with x = –9, are negative in value?



Choose all answers that are correct.









A.

–2x – 8








B.

–26 – 2x








C.

35 + 3x








D.

–3x + (–40)

Answer 1

First lets plug in -9 to each equation and check if both sides are equal.

Answer 2

I think they are equal

Answer 3

Sorry I didn't finish typing, are equal to a negative value. So if we did the first one,
-2 times -9 equals 18
18-8 equals 10
Is ten a positive or negative number?

Answer 4

Trinity: this is something you yourself can do easily. Take each expression, one by one, and substitute x=-9 into each. When you've finished, identify which results are positive and which are negative.