Question

Nb mb bc. Mb mb bc mb bc bc nm nm j,bc,bc,bukb

Answer 1

We have to find the interval of x for which f(x) is positive.

We can see that for all values of x smaller than -1, f(x) is positive.

Then, we can write it as an interval as (-∞, -1).

We use parenthesis in the interval beacuse none of the limits is included as part of the interval.

Answer: f(x) is positive for x ∈ (-∞, -1).