The diagram shows the four quadrants P, Q, R and S on a Cartesian plane. Which of the following points lie in quadrant S?
I (−1,2)
II (4,−2)
III (1,−2)
IV (2,4)
A
I and IV only
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B
III and IV only
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C
II and III only
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D
I and II only
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Solution
The correct option is C II and III only The coordinates of any point on the 2D plane are given in form of (x,y).
In order to be a point in the 4th Quadrant, the value of x has to be positive and the value of y should be negative.
Hence the points II and III are in the 4th Quadrant because they satisfy the above conditions.