12. Mary goes 5 km towards east from a point P to the point Q. From Q she comes 8 km towards west along the
same road. If the distance towards east is represented by a positive integer, then how will you represent the
distance towards west ? By which integer will you represent her final position from P?
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Answer:
Negative
Step-by-step explanation:
According to the Cartesian Coordinate System all directions towards left and downward are taken to be negative and upward and right are considered positive
If you consider east as going right and west as going left then the you will represent distance towards west as negative integer
Since the she walked 8km which is more than the initial 5 km , she has walked farther than the point P towards left hence you will represent her final position by negative
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