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 .
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 .
- Step 1: Express in vertex form by completing the square :
- Step 2: Evaluate at the endpoints of the interval to find the minimum value :
Answer
Maximum , Minimum .
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