A circle has an eccentricity of _________ and a line has an eccentricity of _________.
A) 1; 0
B) 1; 1
C) 0; infinity
D) 0; 1
E) infinity; 0

Question

Quizplus · Accepted Answer

The eccentricity of a circle is 0 because all points on a circle are equidistant from the center, so there is no variation in distance. The eccentricity of a line is 1 because it is the ratio of the distance between the foci and the length of the line, but for a line, the distance between the foci is infinity, so the eccentricity is 1. Therefore, the correct choice is D.

A Circle Has an Eccentricity of _________ and a Line