quadrant
Quadrant 
One quarter of a circle. When plotting coordinates on a graph, the x- and y-axes may intersect to create four quadrants. The first quadrant lies in the region where both x and y are positive.
The remaining three quadrants are numbered in an anticlockwise direction. Thus in the second quadrant, x is negative and y is positive, in the third quadrant, both are negative and in the fourth quadrant x is positive and y negative.
The remaining three quadrants are numbered in an anticlockwise direction. Thus in the second quadrant, x is negative and y is positive, in the third quadrant, both are negative and in the fourth quadrant x is positive and y negative.
© RM 2009. Helicon Publishing is division of RM.
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