The Rectangular Equation That Corresponds to the Polar Equation $\theta = \frac { \pi } { 4 }$

Multiple Choice

The rectangular equation that corresponds to the polar equation $\theta = \frac { \pi } { 4 }$ is

A) $y = 4 x$
B) $4 y = x$
C) $y = - 4 x$
D) $y = x$
E) $y = - x$