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What are the first quadrant, the second quadrant and the third quadrant in the first grade mathematics? Please answer in detail, thank you! (5 22:58:28)
The four areas formed by the horizontal axis and the vertical axis in the coordinate axis are divided into four quadrants.

Take the origin as the center and the X axis and Y axis as the dividing line.

The upper right is called the first quadrant.

The upper left corner is called the second quadrant.

The lower left is called the third quadrant.

The lower right is called the fourth quadrant.

The point on the axis does not belong to any quadrant.

Point P(2, -3) belongs to the fourth quadrant.