Answer fast, please and thank you

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Which statement about 6x2 + 7x – 10 is true?

4. bob solved the inequality problem below incorrectly. explain his error and redo the problem showing the correct answer. ? 2x + 5 < 17 ? 2x + 5-5 < 17-5 -2x/-2 < 12/-2 x < -6