Question 1091278
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Kevin is riding a mini Ferris wheel. He reaches the maximum height of 9m at 5s and then reaches the minimum height of 1m at 65s. 					


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a. What is the period (the length of time to complete one cycle)?      5 seconds + 65 seconds = 70 seconds.
                                                                       Although the condition does not give a direct and explicit info, 
                                                                       I make this conclusion, because there is no other alternatives.


b. what is the radius of the wheel?                                    {{{(9-1)/2}}} = 4 m.


c. sketch one cycle of the function. Label the graph.	               Of which function ?	


d. the corresponding cosine equation:
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I am glad that you found and fixed the error of the previous version after my notice.