What is the Quasilinear equation of an ellipse The focal distance is 2C The longest axis is a The shortest axis is B What is the quasi-existent equation?

What is the Quasilinear equation of an ellipse The focal distance is 2C The longest axis is a The shortest axis is B What is the quasi-existent equation?


The center is at the origin, if the major axis is on the X axis
x0=-+a²/c