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Find the focus.(y-2)2 = 4(x + 3)A. (-2, 1)B. (-3, 1)C. (-2, 2)D. (0, 1)

Find the focus.(y-2)2 = 4(x + 3)A. (-2, 1)B. (-3, 1)C. (-2, 2)D. (0, 1)-example-1
User Kruschid
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1 Answer

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20 votes

Solution

We have the following equation:

(y-2)^2 = 4(x+3)

By direct comparison with the general formula:

(y-k)^2 = 4p(x-h)

We can see that the vertex is (-3, 2)

And the value of p =1

then the focus would be:

F= (-3+1, 2) = (-2,2)

Then the correct answer is:

c. (-2,2)

User Armen Tsirunyan
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