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Mathematics>Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

Davi will use 44 linear feet of wood to make a frame for a rectangular sandbox. The area, A, of the sandbox is given by the equation below where w is the width of the sandbox.

A(w)=22w-w²

What is the largest possible area, in square feet, that Davi can create with this piece of wood?

A.11
B.22
C.110
D.121

答案和解析

答案：D

解析：

Choice D is correct.