If the coordinates of point A are (x, y ) the coordinates of point A´ after rotation will be (-y, x)
Example: A ( 2,3 ) and A´( -3, 2 )
C sounds the best answer to find the exact location
Answer:
Altitude or height above sea level - Locations at a higher altitude have colder temperatures. Temperature usually decreases by 1°C for every 100 metres in altitude. This means that coastal locations tend to be cooler in summer and warmer in winter than places inland at the same latitude and altitude.
Explanation:
They usually have crops or fruits to sell or they are there to buy something they cant find in their cities.