If you were told to graph a function over the domain -1\leq x\leq 5−1≤x≤5 , identify what x-value we would start with and what x
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ANSWER
(-1,2)
EXPLANATION
The given quadratic expression is:
The coefficient of the quadratic term is already 1.
So we add and subtract the square of half the coefficient of x.
We factor the first three terms to obtain
This is now in the form:
where (h,k) which is equal to (-1,2) is the vertex.