$$\text { Find the absolute maximum value of } y = \sqrt { 9 - x ^ { 2 } } \text { on the interval } [ - 9,9 ] \text {. }$$

question 140

Short Answer

$$\text { Find the absolute maximum value of } y = \sqrt { 9 - x ^ { 2 } } \text { on the interval } [ - 9,9 ] \text {. }$$

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