document.write( "Question 944875: the vertex of the parabola is at (-2,-3). when the y-value is -2, the x-value is -5. what is the coefficient of the squared term in the parabolas equation? \n" ); document.write( "

Algebra.Com's Answer #576117 by Fombitz(32388) $\"\"$ $\"About$

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Using the vertex form,
\n" ); document.write( " $\"y=a%28x%2B2%29%5E2-3\"$
\n" ); document.write( "Using the point,
\n" ); document.write( " $\"-2=a%28-5%2B2%29%5E2-3\"$
\n" ); document.write( " $\"-2=a%28-3%29%5E2-3\"$
\n" ); document.write( " $\"1=a%289%29\"$
\n" ); document.write( " $\"highlight%28a=1%2F9%29\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".\r
\n" ); document.write( "\n" ); document.write( " $\"graph%28300%2C300%2C-6%2C6%2C-6%2C6%2C%28x%2B2%29%5E2%2F9-3%29\"$
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