What is the axis of symmetry and vertex for the graph #y=-3(x+6)^2+1#?
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1 Answer
Sep 9, 2017
The axis of symmetry is the line $x=-6$, so the y-coordinate of the vertex is -3(0)+1 which is 1, so the vertex is at $(-6,1)$
Explanation:
The equation is already in the form of a "completed square' (that is, (x+a)²+b, so you can simply read off the axis of symmetry x=-a.
