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This video is for the redesigned SAT which is for you if you are taking the SAT in March 2016 and beyond.
Manipulate Quadratic Expressions
Dina purchased 200 feet of fencing to make a rectangular play area for her dogs. The possible area, A, is given by the equation below where w is the width of the play area.
A(w) = 100w - w2
Which of the following equivalent expressions displays, as a constant or coefficient, the value of the width for which the area is the maximum?
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