document.write( "Question 1093316: Find the vertex of f(x)=-x^2-2x-8 \n" ); document.write( "

Algebra.Com's Answer #707929 by Boreal(15235) $\"\"$ $\"About$

You can put this solution on YOUR website!
vertex x point is at -b/2a, where b is -2 and a is -1 (writing function as ax^2+bx+c.
\n" ); document.write( "x=-(-2)/-1*2=-1
\n" ); document.write( "when x=-1, y=-1+2-8=-7
\n" ); document.write( "at (-1, -7)
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