document.write( "Question 408852: The function f (x) = 2x2 + 8x + c has a minimum value of −11.Find the value of
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Algebra.Com's Answer #289496 by lwsshak3(11628)\"\" \"About 
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The function f(x) = 2x^2+8x+c has a minimum value of −11.Find the value of c\r
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\n" ); document.write( "\n" ); document.write( "Standard form of parabola: y=(x-h)^2+k with (h,k) being the (x,y) coordinates of the vertex.
\n" ); document.write( "completing the square:
\n" ); document.write( "y=2(x^2+4x+4)-8+c
\n" ); document.write( "y=(x+2)^2-8+c
\n" ); document.write( "This is a parabola that opens upwards (so it has a minimum) with a minimum at -8+c which is equal to -11 as given.
\n" ); document.write( "-8+c=-11
\n" ); document.write( "c=-3
\n" ); document.write( "equation of parabola:
\n" ); document.write( "ans:2x^2+8x-3
\n" ); document.write( "se graph below
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+300%2C+300%2C+-10%2C+10%2C+-15%2C+10%2C+2x%5E2%2B8x-3%29+\"
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