## Trigonometry (11th Edition) Clone

It is a $Cardioid$, a special case of $Lima\varsigma ons$. See Graph I for the graphical representation of it.
$r = - 1 + cos\theta$ is a $Cardioid$, a special case of $Lima\varsigma ons$, since $|\frac{-1}{1}| = 1$. See Graph I for the graphical representation of it.