# How do you convert the polar coordinate (1, pi) into cartesian coordinates?

Polar: $\left(1 , \pi\right)$ is equivalent to Cartesian $\left(- 1 , 0\right)$
The polar coordinate $\left(1 , \pi\right)$ is a distance (radius) of $1$ from the origin and at an angle of $\pi$ from the positive X-axis.
This places it on the negative X-axis (i.e. $y = 0$) at $x = - 1$