1. Tardigrade
  2. Question
  3. Mathematics
  4. I. The foci of an ellipse always lies on major axis. II. The foci of an ellipse always lies on minor axis.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. I. The foci of an ellipse always lies on major axis.
II. The foci of an ellipse always lies on minor axis.

Conic Sections

Solution:

The foci always lie on the major axis. The major axis can be determined by finding the intercepts on the axes of symmetry. That is, major axis is along the X-axis, if the coefficient of $x^2$ has the larger denominator and it is along the $Y$-axis, if the coefficient of $y^2$ has the larger denominator.