## Zero Eccentricity

Which conic section has an eccentricity equal to zero?

##
__
__**Hint**

**Hint**

The eccentricity,
$$e$$
, of a conic section indicates how close its shape is a circle.

##
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__**Hint 2**

**Hint 2**

The eccentricity of a parabola is one.

A conic section is a curve obtained from the intersection of a cone’s surface and a flat plane. The eccentricity,
$$e$$
, of a conic section indicates how close its shape is a circle. As eccentricity grows larger, the less the shape resembles a circle. Thus,

Circle