9514 1404 393
Answer:
vertex: (-2, 4)
Step-by-step explanation:
Use your regression calculator to find the parameters of the quadratic model.
The vertex form equation is ...
y = -3(x +2)^2 +4
so the vertex is (-2, 4).
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The standard form equation is the expansion of the above:
y = -3x^2 -12x -8
