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adammouedden198
01.10.2019 •
Mathematics
Write an equation of a parabola that opens to the right, has a vertex at the origin, and a focus at (7, 0.
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Ответ:
With vertex (h, k), we can write the equation as:
Replacing (h, k) with (0, 0), we get:
Now, the focus is a point (a, 0) on the parabola, such that its length from any point on the parabola is equidistant to the moving point on the parabola and the directrix, often noted as: x or y = -a
We're given the focus is: (7, 0)
The focus in its most general term is (a, 0), for when the vertex is at the origin.
Thus a = 7.
Ответ:
The correct answer is y - (-1)= 2/3(x - (-6))
Step-by-step explanation:
I know there was some confusion as to weather this answer was correct. But i an tell you that i am on FLVS and this was the correct answer to this problem.
Hope you found this helpful :)