Answer:
a = -2
h = -1
k = -6
Step-by-step explanation:
This is called the vertex form of a quadratic:
y = a(x – h)2 + k
To arrive at the answer, simply locate where each variable would be in place of the number.
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Answer:

Step-by-step explanation:

There are four terms and it is sum !
so the answer is C !!
Answer:
I've never had to deal with this before but I would say C