Convert theta = 225° to rectangular form.

Question

A) y = -1
B) y = 1
C) y = x
D) y = -x
E) x = -1

Answer 1

same as theta=45°, or y=x

Actually, it's y=x rotated by 180°, but it's still the same line.

Recall that tan 225° = 1 = y/x