document.write( "Question 1137143: What is the maximum height of the equation\r
\n" ); document.write( "\n" ); document.write( "y= -.015x^2 - 275x \n" ); document.write( "
Algebra.Com's Answer #754969 by Theo(13342)\"\" \"About 
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since this quadratic is in standard form of y = ax^2 + bx + c, then a = -.015 and b = -275 and c = 0\r
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\n" ); document.write( "\n" ); document.write( "the maximum height will be when x = -b/2a.\r
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\n" ); document.write( "\n" ); document.write( "s = -b/2a becomes x = -275 / (2 * -.015) which becomes x = -275 / -.03 which becomes x = 9166.66666... = 9166 and 2/3.\r
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\n" ); document.write( "\n" ); document.write( "the roots of this equation can be found using the quadratic formula.\r
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\n" ); document.write( "\n" ); document.write( "the roots are x = -18333.33333.... and x = 0.\r
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\n" ); document.write( "\n" ); document.write( "here's a graph of the equation with the maximum value and the value of the roots shown.\r
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