Question

help pleasee @t0mmiere @Mertsj

Answer 1

Easiest way is to graph each one with your graphing calculator and pick out the correct answers that way. Or you could go to Wolframalpha.com and that would graph them for you.

Answer 2

The graph looks like a reverse snake, hence function is an odd degree polynomials with negative leading coefficient -> C or D

Answer 3

You can remember that when you have the slope on the left, remember that it is always a negative function and the right means a positive function.

Answer 4

https://www.wolframalpha.com/input/?i=-x^9%2Bx^3-x^2

Answer 5

https://www.wolframalpha.com/input/?i=-x^7%2B4x^3-2x^2

Answer 6

So choose C & D

Answer 7

You can also remember this equation: y = ax2 + bx + c