document.write( "Question 701752: Determine whether the given quadratic function has a maximum value or minimum... Then find the coordinates of the maximum or minimum point. \r
\n" ); document.write( "\n" ); document.write( "f(x)= x^2+2x-9\r
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\n" ); document.write( "\n" ); document.write( "and \r
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\n" ); document.write( "\n" ); document.write( "f(x)=-x^2-2x-6
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Algebra.Com's Answer #432873 by lwsshak3(11628)\"\" \"About 
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Determine whether the given quadratic function has a maximum value or minimum... Then find the coordinates of the maximum or minimum point.
\n" ); document.write( "f(x)= x^2+2x-9
\n" ); document.write( "complete the square:
\n" ); document.write( "f(x)= (x^2+2x+1)-1-9
\n" ); document.write( "f(x)= (x+1)^2-10
\n" ); document.write( "This is a parabola that opens upwards with a minimum of -10 at x=-1
\n" ); document.write( "coordinates:(-1,-10)
\n" ); document.write( "and
\n" ); document.write( "f(x)=-x^2-2x-6
\n" ); document.write( "f(x)=-(x^2+2x+1)+1-6
\n" ); document.write( "f(x)=-(x+1)^2-5
\n" ); document.write( "This is a parabola that opens downwards with a maximum of -5 at x=-1
\n" ); document.write( "coordinates:(-1,-5)
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