Find the maximum and minimum values of on the closed interval .

Answer and explanation

Correct answer: A. Maximum , Minimum

.
The vertex occurs at , which lies within the given interval . Since the leading coefficient is negative, the maximum value is .
,
.
The minimum value on is .
Therefore, the maximum is and the minimum is .
  1. Step 1: Express in vertex form by completing the square :
  2. Step 2: Evaluate at the endpoints of the interval to find the minimum value :
Answer
Maximum , Minimum .

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