document.write( "Question 618531: Use a graphing utility to graph the quadratic function. Find the x-intercepts of the graph and compare them with the solutions of the corresponding quadratic equation when y=0.
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Algebra.Com's Answer #388972 by stanbon(75887) $\"\"$ $\"About$

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Use a graphing utility to graph the quadratic function. Find the x-intercepts of the graph and compare them with the solutions of the corresponding quadratic equation when y=0.
\n" ); document.write( "y=x^2-9x+18
\n" ); document.write( " $\"graph%28400%2C400%2C-10%2C10%2C-10%2C10%2Cx%5E2-9x%2B18%29\"$
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\n" ); document.write( "y = x^2-9x+18
\n" ); document.write( "x = [9 +- sqrt(81-4*18)]/2
\n" ); document.write( "x = [9 +- sqrt(9)]/2
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\n" ); document.write( "x = (9+3)/2 = 6
\n" ); document.write( "x = (9-3)/2 = 3
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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