document.write( "Question 998657: The graph of the quadratic function y = -x2 + x + 2 is a parabola.\r
\n" ); document.write( "\n" ); document.write( "What is the range of the function?\r
\n" ); document.write( "\n" ); document.write( "What is its vertex?\r
\n" ); document.write( "\n" ); document.write( "What is the equation of the axis of symmetry?\r
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Algebra.Com's Answer #616421 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
\"y=-x%5E2%2Bx%2B2\"---------as given, lead term coefficient indicates concave downward, vertex a maximum.
\n" ); document.write( "\"y=-%28x%5E2-x-2%29\"
\n" ); document.write( "\"y=-%28x%2B1%29%28x-2%29\"
\n" ); document.write( "Roots will be -1 and +2. Symmetry axis in the exact middle.\r
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\n" ); document.write( "\n" ); document.write( "\"%28-1%2B2%29%2F2\"
\n" ); document.write( "\"1%2F2\"
\n" ); document.write( "\"highlight%28x=1%2F2%29\"-----------Axis of Symmetry\r
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\n" ); document.write( "\n" ); document.write( "Evaluate y at \"x=1%2F2\".
\n" ); document.write( "\"y=-%281%2F2%2B1%29%281%2F2-2%29\"
\n" ); document.write( "\"y=-%283%2F2%29%28-3%2F2%29\"
\n" ); document.write( "\"highlight%28y=9%2F4%29\"-------Vertex is ( 1/2, 9/4 ).\r
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\n" ); document.write( "\n" ); document.write( "RANGE
\n" ); document.write( "All real values so that \"y%3C=9%2F4\", because remember, this graph has a vertex as a maximum.
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