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.
-$( 4,0 )$
A) $90 ^ { \circ } ; \mathrm { N } 90 ^ { \circ } \mathrm { E }$ or $\mathrm { S } 90 ^ { \circ } \mathrm { E }$
B) $270 ^ { \circ } ; \mathrm { N } 90 ^ { \circ } \mathrm { W }$ or $\mathrm { S } 90 ^ { \circ } \mathrm { W }$
C) $90 ^ { \circ } ; \mathrm { N } 90 ^ { \circ } \mathrm { W }$ or $\mathrm { S } 90 ^ { \circ } \mathrm { W }$
D) $270 ^ { \circ } ; \mathrm { N } 90 ^ { \circ } \mathrm { E }$ or $\mathrm { S } 90 ^ { \circ } \mathrm { E }$

Question

Quizplus · Accepted Answer

The point (4,0) is directly to the east of the origin, which corresponds to a bearing of $90^\circ$ from north, or $N 90^\circ E$. There is no valid bearing of $S 90^\circ E$ from the origin to this point, making the additional option incorrect, but the primary bearing description is accurate.

An Observer for a Radar Station Is Located at the Origin