Answer
The answer is below.
Work Step by Step
Given: $-\frac{3\pi}{4}$ rad $=-135^{\circ}$
The standard position of an angle occurs when we place its vertex at the origin of a coordinate system and its initial side on the positive x-axis.
A positive angle is obtained by rotating the initial side counterclockwise until it coincides with the terminal side. Likewise, negative angles are obtained by clockwise rotation.
