What do polar coordinates show?
r, θ
What do cartesian coordinates show?
x, y
How do you convert cartesian to polar?
using trigonometry to find the missing side and the angle of the triangle that x and y creates
How do you convert negative cartesian coordinates to polar?
Figure out which quadrant the coordinate is in on a graph and add accordingly (x,y = no change, -x,y and -x,-y = add 180° to calculator value, x,-y = add 360° to calculator value)