document.write( "Question 949449: how do i solve 8x^2-11x-11=0 using the graphical method \n" ); document.write( "

Algebra.Com's Answer #579648 by MathLover1(20849) $\"\"$ $\"About$

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$\"8x%5E2-11x-11=0\"$ ...here you have a parabola (function is of degree $\"2\"$ )\r
\n" ); document.write( "\n" ); document.write( "to use the graphical method, choose several values for variable $\"x\"$ , calculate $\"y\"$ , you will get the coordinates of the points that lie on this parabola\r
\n" ); document.write( "\n" ); document.write( " $\"x\"$ | $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-2\"$ | $\"43\"$ -> $\"8x%5E2-11x-11=y\"$ -> $\"8%28-2%29%5E2-11%28-2%29-11=y\"$ -> $\"32%2B22-11=y\"$ -> $\"43=y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-1\"$ | $\"8\"$ -> $\"8%28-1%29%5E2-11%28-1%29-11=y\"$ -> $\"8%2B11-11=y\"$ -> $\"8=y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"0\"$ | $\"-11\"$ -> $\"8%280%29%5E2-11%280%29-11=y\"$ -> $\"0%2B0-11=y\"$ -> $\"-11=y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"1\"$ | $\"-14\"$ -> $\"8%281%29%5E2-11%281%29-11=y\"$ -> $\"8-11-11=y\"$ -> $\"-14=y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"2\"$ | $\"-1\"$ -> $\"8%282%29%5E2-11%282%29-11=y\"$ -> $\"32-22-11=y\"$ -> $\"-1=y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"3\"$ | $\"-1\"$ -> $\"8%283%29%5E2-11%283%29-11=y\"$ -> $\"72-33-11=y\"$ -> $\"28=y\"$ \r
\n" ); document.write( "\n" ); document.write( "now, plot these points and draw a line through\r
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