Plot the point that has the given polar coordinates.
$\left(2, \frac{2\pi}{3}\right)$
Give two other polar coordinate representations of the point, one with $r < 0$ and one with $r > 0$.
$(r, \theta) = ($____$,$____$) (smaller $r$-value)
$(r, \theta) = ($____$,$____$) (larger $r$-value)