Question

Equation of the ellipse with vertices (-4,3), (8,3) and e=$\frac{5}{6}$ is

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

A(-4,3),B(8,3), its centre C=(2,3), e = $\frac{5}{6}$

2a = 12 $\Rightarrow$ a = 6, $b^2$ = 36(1-$\frac{25}{36})$ = 11

$\frac{(x-2{)}^2}{36}+\frac{(y-3{)}^2}{11}$ = 1