Question

What is major axis length for ellipse \((\frac{x}{25})^2+(\frac{y}{16})^2\)=1?

(a) 5 units

(b) 4 units

(c) 8 units

(d) 10 units

This question was addressed to me by my school principal while I was bunking the class.

I need to ask this question from Conic Sections topic in portion Conic Sections of Mathematics – Class 11

Answer 1

Right option is (d) 10 units

The best explanation: Comparing the equation with \((\frac{x}{a})^2+(\frac{y}{b})^2\)=1, we get a=5 and b=4.

Major axis length = 2a = 2*5 =10 units.