document.write( "Question 1187729: can I ask this for last time, it's just that the other answer is correct but will use another equation.\r
\n" ); document.write( "\n" ); document.write( "axis vertical and passing through (0,0),(1,0),(5,-20)
\n" ); document.write( "using the equation: (x-h)^2=-4a(y-k)\r
\n" ); document.write( "\n" ); document.write( "thank you so much, sorry for the inconvenience \n" ); document.write( "
Algebra.Com's Answer #818785 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "can I ask this for last time, it's just that the other answer is correct but will use another equation.\r
\n" ); document.write( "\n" ); document.write( "axis vertical and passing through (0,0),(1,0),(5,-20)
\n" ); document.write( "using the equation: (x-h)^2=-4a(y-k)\r
\n" ); document.write( "\n" ); document.write( "thank you so much, sorry for the inconvenience
\n" ); document.write( "
The x-value that's MIDWAY between the 2 ROOTS is the x-coordinate of the vertex, or h. \r\n" );
document.write( "With the ROOTS being (0, 0) and (1, 0), \"matrix%281%2C5%2C+h%2C+%22=%22%2C+%281+-+0%29%2F2%2C+%22=%22%2C+1%2F2%29\"\r\n" );
document.write( "\r\n" );
document.write( " \"matrix%281%2C3%2C+%28x+-+h%29%5E2%2C+%22=%22%2C+-+4a%28y+-+k%29%29\"\r\n" );
document.write( "\"matrix%281%2C3%2C+%280+-+1%2F2%29%5E2%2C+%22=%22%2C+-+4a%280+-+k%29%29\" ----- Substituting \"1%2F2\" for h, and (0, 0) for (x, y)\r\n" );
document.write( "      \"matrix%281%2C3%2C+1%2F4%2C+%22=%22%2C+4ak%29\"\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( " \"matrix%281%2C3%2C+%28x+-+h%29%5E2%2C+%22=%22%2C+-+4a%28y+-+k%29%29\"\r\n" );
document.write( "\"matrix%281%2C3%2C+%285+-+1%2F2%29%5E2%2C+%22=%22%2C+-+4a%28-+20+-+k%29%29\" -- Substituting \"1%2F2\" for h, and (5, - 20) for (x, y)\r\n" );
document.write( " \r\n" );
document.write( "     \"matrix%281%2C3%2C+81%2F4%2C+%22=%22%2C+80a+%2B+1%2F4%29\" ----- Substituting \"1%2F4\" for 4ak\r\n" );
document.write( "  \r\n" );
document.write( "\r\n" );
document.write( "      \"matrix%281%2C3%2C+1%2F4%2C+%22=%22%2C+4ak%29\" \r\n" );
document.write( "      \"matrix%282%2C3%2C+1%2F4%2C+%22=%22%2C+4%281%2F4%29k%2C+1%2F4%2C+%22=%22%2C+k%29\" ----- Substituting \"matrix%281%2C3%2C+1%2F4%2C+for%2C+a%29\"\r\n" );
document.write( "\r\n" );
document.write( "  \"matrix%281%2C3%2C+%28x+-+h%29%5E2%2C+%22=%22%2C+-+4a%28y+-+k%29%29\"\r\n" );
document.write( " \"matrix%281%2C3%2C+%28x+-+1%2F2%29%5E2%2C+%22=%22%2C+-+4%281%2F4%29%28y+-+1%2F4%29%29\" ------ Substituting \"1%2F2\" for h, \"matrix%281%2C3%2C+1%2F4%2C+for%2C+a%29\", and \"1%2F4\" for k\r\n" );
document.write( "  <===== Correct equation
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