document.write( "Question 447781: how would i find the maximun height of an arch with an equation such as h=-0.00635x^2+4.0005x-0.07875 \n" ); document.write( "

Algebra.Com's Answer #308615 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "h= -0.00635x^2+4.0005x-0.07875
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document.write( "Note: the vertex form of a parabola,  where(h,k) is the vertex
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document.write( "h= -0.00635x^2+4.0005x-0.07875  |Completing the square
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document.write( "h = -.00635[[(x-315)^2 - 99225] -.07875
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document.write( "h = -.00635[(x-315)^2 + 630.07875 -.07875
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document.write( "h = -.00635[(x-315)^2 + 630  Vertex(315,630) a = -.00635 < 0 parabola opens downward
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document.write( " Maximum height is 630
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