Answer
The given angle is positive therefore, we will move counterclockwise from the positive x-axis as depicted in the figure:
Work Step by Step
Given: $315^{\circ}$
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.