document.write( "Question 956072: The vertex of this parabola is at (-4, -1). When the y-value is 0, the x-value is 2. What is the coefficient of the squared term in the parabola's equation? \n" ); document.write( "

Algebra.Com's Answer #584078 by josgarithmetic(39618) $\"\"$ $\"About$

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Standard Form Equation $\"y=a%28x-%28-4%29%29%5E2%2B%28-1%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "Simplify a bit, $\"y=a%28x%2B4%29%5E2-1\"$ \r
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\n" ); document.write( "\n" ); document.write( "Solve for a and evaluate using the other given point (2,0).\r
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\n" ); document.write( "\n" ); document.write( " $\"a=%28y%2B1%29%2F%28x%2B4%29%5E2\"$
\n" ); document.write( " $\"a=%280%2B1%29%2F%282%2B4%29%5E2\"$
\n" ); document.write( " $\"highlight%28a=1%2F36%29\"$ \n" ); document.write( "

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