Question

The ellipse ^2/9 + ^2/4 =1, has its major axis length equal toa.13b. 9 c. 4 d. 3 e. 6

Answer 1

The given equation of ellipse is,

$\begin{gathered} \frac{x^2}{9}+\frac{y^2}{4}=1 \\ \frac{x^2}{3^2}+\frac{y^2}{2^2}=1 \end{gathered}$

Thus, the major axis length can be determined as,

$2a=2\times3=6$

Thus, option (e) is correct.