Question

(x+2)/(x−4)≤ 0 Solve and graph.

Answer 1

We know that the minimum x can be is -2, because any lower and the numerator will be greater than 0.
\[-2 \le x\]
Also, we know that at 4, the rational equation is undefined.
\[x \neq 4\]
Any higher than 4, the equation turns out to be greater than 0, which doesn't work.
\[4 > x\]
So we have:
\[-2 \le x <4\]

Answer 2

Dont understand but thanks