document.write( "Question 944692: Find the equation of the parabola wit vertex at (-5,4),opening to the left and passes through (-7,1). \n" ); document.write( "
Algebra.Com's Answer #576005 by josgarithmetic(39617)\"\" \"About 
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Standard Form, assuming vertical symmetry axis, \"y=a%28x-h%29%5E2%2Bk\", vertex is (h,k).\r
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\n" ); document.write( "\n" ); document.write( "From that, solving for a,
\n" ); document.write( "\"a=%28y-k%29%2F%28x-h%29%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "Plug-in the numbers.
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