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The vertices are (0, ±10) and e = 4/5. Where are the foci?
A(±8, 0)
B(0, ±6)
C(0, ±8)
D(0, ±4)
Answer & Solution
Correct answer: C. (0, ±8)
The foci sit at distance c = ae = 10 x 4/5 = 8 from the centre along the major axis, which is vertical.
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