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Multiple Choice: The maximum value of over the interval is nearest to:

Expand f before differentiating.

Remember that a maximum value is a y-value, not an x-value.

Notice that this is a CLOSED domain: .
Since maxima can exist where or where , it is important to check the y-values at each endpoint.
________ and ________
After all, an endpoint might exceed the y-values where ; in which case, that endpoint will be in the global maximum.