document.write( "Question 1206295: all i need is # of roots, range, and axis of symmetry for the problem
\n" ); document.write( "f(x)=-x^2-2x+3
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Algebra.Com's Answer #843627 by josgarithmetic(39617)\"\" \"About 
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zeros,
\n" ); document.write( "\"f%28x%29=-1%28x%5E2%2B2x-3%29\"
\n" ); document.write( "\"f%28x%29=-1%28x%2B3%29%28x-1%29\"
\n" ); document.write( "zeros are -3 and +1.\r
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\n" ); document.write( "\n" ); document.write( "Vertex is at the exact middle of the two roots, x=-1, the symmetry axis \"x=-1\".\r
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\n" ); document.write( "\n" ); document.write( "Maximum point (the vertex) is \"f%28-1%29=-1%28-1%2B3%29%28-1-1%29=-1%282%29%28-2%29=4\".
\n" ); document.write( "Range is the real numbers less than or equal to +4.
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