Question

8-4(2-x)=<-2x
use interval notation

Answer 1

8 - 8 + 4x ≤ -2x
6x ≤ 0
x ≤ 0
Range of x: [-∞ , 0]

Answer 2

(-∞ , 0] this is z answer

Answer 3

Well, Kira Yamato's answer could only imply (-∞ , 0], when dealing with infinity we can't use Closed interval in the unbound side.

Answer 4

But we can't rule out that possibility since < is part of ≤

Answer 5

≤ would only impose the closed interval on the '0' side,however the infinity side is free from any change.

Answer 6

infinity can never be closed!!!