6.2.3 Investigating Graphs of Polynomial Functions - Worksheet (continued)
Example 4: Graph each function on a calculator, and estimate the local maxima and minima. 11. f ( x ) = x 4 − 4 x 3 + 3 x + 5 12. f ( x ) = 2 x 3 − 3 x 2 − 6 x − 5
Example 5: 13. Vera has 60 ft of fencing and wants to enclose a patio, using an existing wall for one side as shown. The area of the patio can be modeled by A ( x ) = 60 x − 3 x 2 , where x is in feet. Find the maximum area of the patio.
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