Identify the conic that this polar equation represents. Also, give the position of the directix.

Question

Identify the conic that this polar equation represents. Also, give the position of the directix.
r=1/(1+costheta)

The equation defines a circle.
The equation defines an ellipse.
The equation defines a hyperbola.
The equation defines a parabola.


The directix is______ to the polar axis and______ unit(s)______ the pole.

Answer 1

This site may be helpful:

 

http://www.mecca.org/~halfacre/math/polarconics.htm