12) Write the equation of the quadratic whose vertex is (-2,3) and a = -3.
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Answer:
1
Step-by-step explanation:
We have the function
and we want to know the value of .
The first step is to find ; we can subtract 1 from it at the end! But what does
mean?
Basically, we're saying <em>"what is the value of the function when </em><em> ?"</em>
So, we simply replace with 3 in the function, and we get:
.
Finally, we subtract 1 to find .
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