document.write( "Question 353677: the vertex of the parabola is at (2,-1).when the y-value is at 0, the x-value is at 5. what is the coefficient of the squared term in the parabolas equation? \n" ); document.write( "
Algebra.Com's Answer #252796 by Fombitz(32388)\"\" \"About 
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Use the vertex form, \"y=a%28x-h%29%5E2%2Bk\"
\n" ); document.write( "\"y=a%28x-2%29%5E2-1\"
\n" ); document.write( "\"0=a%285-2%29%5E2-1\"
\n" ); document.write( "\"0=a%283%29%5E2-1\"
\n" ); document.write( "\"9a=1\"
\n" ); document.write( "\"highlight%28a=1%2F9%29\"
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