document.write( "Question 250613: y = -x^2 + 7x - 2 \r
\n" ); document.write( "\n" ); document.write( "I need to graph this quadratic function.\r
\n" ); document.write( "\n" ); document.write( "I know I will need to use -b/2a and find y, but I am quite confused on how to solve this problem.
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Algebra.Com's Answer #182524 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"x=-b%2F2a\" will give you the vertex and the axis of symmetry.
\n" ); document.write( "\"b=7\"
\n" ); document.write( "\"a=-1\"
\n" ); document.write( "\"x=-7%2F2=3.5\"
\n" ); document.write( "You can then plot points equidistant from the vertex (they have the same y value).
\n" ); document.write( "x=3 and x=4 would give the same y, y=-9+21-2=10
\n" ); document.write( "x=2 and x=5 would give the same y, y=-4+14-2=8
\n" ); document.write( "x=1 and x=6 would give the same y, y=-1+7-2=4
\n" ); document.write( "x=0 and x=7 would give the same y, y=0+0-2=-2
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