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Vaselesa [24]
3 years ago
15

Please help me with solving what is y. Thanks!

Mathematics
2 answers:
Brut [27]3 years ago
7 0
In this question y = 5
Sveta_85 [38]3 years ago
4 0
The answer should be 5 :)
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Derive the equation of the parabola with a focus at (_5, 5) and a directrix of y = -1.
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Answer: Option D is correct.

Step-by-step explanation:

Since we have given that

focus = (-5,5)

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Since, equation of parabola in this case will be

(x-h)^2=4.a(y-k)

Now, here

y=k-a=-1\\\\\text { focus =(h,k+a)}\\\\\text{So,} k+a=5\\\\\text{ by solving these two equation , we get }\\\\a=3\text{ and } k=2

So equation will be

(x+5)^2=4\times 3(y-2)\\\\(x+5)^2=12(y-3)\\\\y=\frac{1}{12}(x+5)^2+2

So, option D is correct .

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3 years ago
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dlinn [17]

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Step-by-step explanation:

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