document.write( "Question 1206103: Find an equation in the form y=ax^2+bx+c for the parabola passing through the points (-1,0),(2,-54),(5,-252) \n" ); document.write( "
Algebra.Com's Answer #843340 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
(-1,0),(2,-54),(5,-252)
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document.write( "On your TI-84\r\n" );
document.write( "Press STAT\r\n" );
document.write( "Press 1\r\n" );
document.write( "Using the arrow keys and ENTER,\r\n" );
document.write( "   Enter the 3 given x-coordinates in L1  \r\n" );
document.write( "   Enter the 3 given corresponding y-coordinates in L2\r\n" );
document.write( "Press STAT\r\n" );
document.write( "Press the right arrow once to highlight CALC\r\n" );
document.write( "Press 5 for QuadReg\r\n" );
document.write( "Press the down arrow 4 times to highlight CALCULATE\r\n" );
document.write( "Press ENTER\r\n" );
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document.write( "You'll see the values for a,b, and c on the screen\r\n" );
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document.write( "y=ax2+bx+c\r\n" );
document.write( "a=-8\r\n" );
document.write( "b=-10\r\n" );
document.write( "c=-2\r\n" );
document.write( "R2=1\r\n" );
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document.write( "The R2=1 tells us that it's a perfect fit.\r\n" );
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document.write( "Edwin
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