Conic Sections Question 466

Question: Foci of the hyperbola $ \frac{x^{2}}{16}-\frac{{{(y-2)}^{2}}}{9}=1 $ are

Options:

A) (5, 2) (-5, 2)

B) (5, 2) (5, -2)

C) (5, 2) (-5, -2)

D) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

$ a=4,b=3 $

therefore $ \frac{9}{16}=(e^{2}-1) $

therefore $ e=\frac{5}{4} $

Vertex is (0, 2).

Hence focus is $ (\pm ae,2)=(\pm 5,2) $ .