Question

Which description of eccentricity is correct?

a. An eccentricity of zero is a line.
b. An eccentricity of zero is a circle.
c. An eccentricity of one is a circle.
d. An eccentricity of one is circular.

Answer 1

The correct description of eccentricity is that an eccentricity of zero is a circle.

Step-by-step explanation:

The correct description of eccentricity is option b. An eccentricity of zero is a circle. In an ellipse, the eccentricity is a measure of how oblong the shape appears. A circle is a special case of an ellipse where the two foci coincide, resulting in a zero eccentricity. The eccentricity of a circle is always zero because the distance from any point on the circle to the center is constant. Therefore, a circle can be considered an ellipse with zero eccentricity.