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Foci (-2, 3) and (6, 3), distance sum 10. What is the minor axis length?
A6
B10
C8
D3
Answer & Solution
Correct answer: A. 6
The foci are 8 apart so c = 4, and 2a = 10 gives a = 5, hence b = 3 and the minor axis is 6.
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