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Algebra
Question

The height of a bridge is given by the equation \(...The height of a bridge is given by the equation \( y = - 3 x ^ { 2 } + 12 x \) , where \( y \) is the height of the bridge (in miles) and \( x \) is the number of miles from the base of the bridge. I. How far from the base of the bridge does the maximum height occur? II. What is the maximum height of the bridge? 

A) I. 2miles 

II. \(12 \) miles 

B) I. -2miles 

II. \(12\) miles 

C) I. 3miles 

II. 9miles 

D) I. 3miles 

II. 9 miles 

Answer

A

Solution
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