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Three of the four vertices of a rectangle are (5,11), (16,11), and (16,-2).  A line of the form y = 2x + b splits it in half.  What is b?

 Oct 14, 2020
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The other vertice of the rectangle is   5 -2

   to split the rectangle in half, the line must go through the center  10.5 , 4.5

        sub in the given point

                4.5 = 2 (10.5) + b

                       b = -16.5

 
 Oct 14, 2020

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