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29 votes
29 votes
I need help with 9, 11, and 12.I would appreciate step-by-step explanations :)

I need help with 9, 11, and 12.I would appreciate step-by-step explanations :)-example-1
User Florian Loch
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2.7k points

1 Answer

19 votes
19 votes

The general equation of the quadratic function is:


f(x)=a(x-h)^2+k

Where: the vertex will be = (h, k)

Given for problem 9:


f(x)=2(x-3)^2+1

compare to the general form

so, h = 3, k =1

So, the coordinates of the vertex = (3, 1)

User Maxxer
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