Angles in standard position
Coterminal angles
Reference angle
Summary of circles and symmetry
Given point (a, b) on the terminal side of a standard position angle, thenL
(-a,b) must be also on the graph because of the reflection in the x-axis
(a, -b) must also be on the graph because of the reflections in the y-axis
(-a, -b) must also be on the graph because of the reflections in the x-axis and y-axis