Question

Evaluate -8(x- 3y) when x = -2 and y = -4
(Points : 1)
112
80
-80
-16

Answer 1

This one is a little tricky with all the negatives. xD
-8(x - 3y)
We have to plug x and y in.
-8(-2 - 3(-4))
Let's do what's in parenthesis first.
(-2 - 3(-4))
-3 * -4 = 12 (2 negatives = a positive number)
-2 + 12 = 10
Now, we have: -8(10)
-8 * 10 = -80 <--- Answer. (: