Question

The equation of an ellipse is given in its standard form as, $16x^2+y^2=16$. Length of the major axis is:

• A. $8$
• B. $2$
• C. $4$
• D. $1$

Answer 1

The correct option is A $8$

Equation of ellipse, $16x^2+y^2=16$

Dividing both sides by 16

$\frac{x^2}{1}+\frac{y^2}{16}=1$

$a=1andb=4(b>a)$

length of major axis = $2b=8$