An observer for a radar station is located at the origin of a coordinate system. For the point given, find the bearing of an
airplane located at that point. Express the bearing using both methods.
-$( - 7,7 )$
A) $315 ^ { \circ } ; \mathrm { N } 45 ^ { \circ } \mathrm { W }$
B) $225 ^ { \circ } ; \mathrm { N } 45 ^ { \circ } \mathrm { W }$
C) $225 ^ { \circ } ; \mathrm { S } 45 ^ { \circ } \mathrm { E }$
D) $315 ^ { \circ } ; \mathrm { S } 45 ^ { \circ } \mathrm { E }$

Question

Quizplus · Accepted Answer

The point $(-7,7)$ is in the northwest quadrant of the coordinate system. The angle measured clockwise from the positive x-axis (east direction) to the point is $315^\circ$. When expressed as a bearing, it is $45^\circ$ west of north, or $N 45^\circ W$.

An Observer for a Radar Station Is Located at the Origin