W(x) = - x { }^(2) - 2x \: find \: w( - 8) a) -48 b) -15 c)-24 d)-80

Question

`w(x) = - x { }^(2) - 2x \: find \: w( - 8)`

a) -48
b) -15
c)-24
d)-80

Answer 1

The answer is a) -48

Explanation:

To find the answer, we take -8 and plug in to x every place we see it.

w(x) = -x^2 - 2x

w(-8) = -(-8)^2 - 2(-8)

w(-8) = -(64) + 16

w(-8) = -48