document.write( "Question 1131360: f(x) = −x^2 + 7x + 8
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\n" ); document.write( "Find the x-intercepts of the graph of f.
\n" ); document.write( "(x, y) = ____________(smaller x-value)
\n" ); document.write( "(x, y) = ______________(larger x-value)
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Algebra.Com's Answer #748013 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"f%28x%29+=+-x%5E2+%2B+7x+%2B+8\"$ \r
\n" ); document.write( "\n" ); document.write( "to find the x-intercepts of the graph of f, set $\"f%28x%29+=y=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"0+=+-x%5E2+%2B+7x+%2B+8\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%5E2+-7x+-8=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%5E2+%2Bx-8x+-8=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x%5E2+%2Bx%29-%288x+%2B8%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%28x+%2B1%29-8%28x+%2B1%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x-8%29%28x+%2B1%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( "=> $\"x=8\"$ and $\"x=-1\"$ \r
\n" ); document.write( "\n" ); document.write( "( $\"x\"$ , $\"y\"$ ) = _( $\"-1\"$ , $\"0\"$ )__(smaller x-value)
\n" ); document.write( "( $\"x\"$ , $\"y\"$ ) = _( $\"8\"$ , $\"0\"$ )_(larger x-value)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"+graph%28+600%2C+600%2C+-25%2C+25%2C+-25%2C+25%2C+-x%5E2+%2B+7x+%2B+8%29+\"$
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