PLEASE PLEASE HELP!!!!!!
The shape of a roller coaster is modeled by a polynomial function, R(x). Describe how to find the x-intercepts of R(x) and how to construct a rough graph of R(x) so that the engineer can predict when there will be no change in the direction of the coaster. You may create a sample polynomial of degree 3 or higher to use in your explanations.

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@mathmale can you help now?

Hi Rosie. Let's break this down a bit. Firstly, how do you find x intercepts?

I'm not sure

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