The height above the ground of one of the seats of a Ferris wheel, in metres, can be modelled by the function where is measured in seconds.
a) What is the maximum and minimum height reached by any seat?
Sub in t = 90 and t = 270 to obtain the max and the min, 15m and 1m.
b) How long does it take for the seat on this ride to rotate back to its starting point?
How exactly am I supposed to figure this out? I know I'm supposed to isolate for , but I can only do that if I have a value for .
Any help would be appreciated.