document.write( "Question 756040: Write an equation for the parabola whose vertex is at (2,6) and which passes through (4,-4) \n" ); document.write( "

Algebra.Com's Answer #459965 by tommyt3rd(5050) $\"\"$ $\"About$

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h=2
\n" ); document.write( "k=6
\n" ); document.write( "x=4
\n" ); document.write( "y=-4
\n" ); document.write( " $\"%0D%0Ay=a%2A%28x-h%29%5E2%2Bk%0D%0A\"$ \r
\n" ); document.write( "\n" ); document.write( "becomes\r
\n" ); document.write( "\n" ); document.write( " $\"%0D%0A-4=a%2A%284-2%29%5E2%2B6%0D%0A\"$ \r
\n" ); document.write( "\n" ); document.write( "so a=-5/2\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "so we get\r
\n" ); document.write( "\n" ); document.write( " $\"%0D%0Ay=%28-5%2F2%29%2A%28x-2%29%5E2%2B6%0D%0A\"$ \n" ); document.write( "

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