Question

Pre-calculus question

Answer 1

I think that it is not C

Answer 2

sorry it is not B, please if we compute the first derivative, we get that your function is an incresing function, if:
\[3{x^2} + 2x - 5 > 0\]
please solve that inequality

Answer 3

increasing*

Answer 4

x < -5/3 or x > 1

Answer 5

yes! it is an increasing function inside your intervals

Answer 6

so, what is the right option?

Answer 7

no, since your function is increasing for x < -5/3 or x > 1, as you wrote before

Answer 8

Ah, I see. Thanks Michele!

Answer 9

:)