document.write( "Question 464948: Find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function. f(x) = -x^2+8x+6 \n" ); document.write( "

Algebra.Com's Answer #318506 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "Using the vertex form of a parabola,  where(h,k) is the vertex
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document.write( "f(x) = -x^2+8x+6 | Completing square to put into vertex form
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document.write( "f(x) = -[(x-4)^2-16]+6
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document.write( "f(x) = -(x-4)^2 + 22 |V(4,22), a = -1 <0 ,parabola opens downward, vertex a max Pt
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document.write( "x = 4, line of symmetry
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