document.write( "Question 328374: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). Graph the function. f(x)=-(x+2)^2-8 \n" ); document.write( "

Algebra.Com's Answer #235195 by Fombitz(32388) $\"\"$ $\"About$

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The equation is in vertex form $\"y=a%28x-h%29%5E2%2Bk\"$ where (h,k) is the vertex.
\n" ); document.write( "(h,k)=(-2,-8)
\n" ); document.write( "The vertex lies on the line of symmetry, $\"x=-2\"$
\n" ); document.write( "If the parabola opens upwards, the vertex y coordinate is the minimum y value.
\n" ); document.write( "If the parabola opens downwards, the vertex y coordinate is the maximum y value.
\n" ); document.write( "In this case, $\"ymax=-8\"$
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