Q1. How many bends are there in the roller coaster? Q2. In the given domain, how many times does the roller coaster reach the same height as that of the starting point (i.e. for x=−1x=−1)(taking x=−1x=−1 in to the account)?

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter8: Functions
Section8.4: More Quadratic Functions And Applications
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A roller coaster ride follows the curve defined by the polynomial function f(x)=9x3+9x2−x−1 considering some fixed horizontal reference plane) in the domain [−1, 0.5].

 

Q1. How many bends are there in the roller coaster?

Q2. In the given domain, how many times does the roller coaster reach the same height as that of the starting point (i.e. for x=−1x=−1)(taking x=−1x=−1 in to the account)?

 
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