Question

so when your on the unit circle tryin to find like -4pi/3, do you go the opposite way as you usually do on the unit circle so it changes direction or do you still just go to the 4pi/3?

Answer 1

so is -4pi/3 really the location of the 2pi/3 or is it still just at the regular location of 4pi/3?

Answer 2

yes a negative angle means you are going the opposite way (clock-wise)
easy way to change it to the equivalent positive angle is to add 2pi

--> -4pi/3 +2pi = 2pi/3