Answers

1. Given:

   The point is (1,-2).

   To find:

   The quadrant in which the point (1,-2) lies.

   Solution:

   We know that,

   In first quadrant, both coordinates are positive, i.e., (x,y).

   In second quadrant, x coordinate is negative but the y-coordinate is positive, i.e., (-x,y).

   In third quadrant, both coordinates are negative, i.e., (-x,-y).

   In fourth quadrant, x coordinate is positive but the y-coordinate is negative, i.e., (x,-y).

   Where, x and y are two non-negative values.

   In the given point (1,-2) the x coordinate is positive but the y-coordinate is negative.

   Therefore, the point (1,-2) lies in fourth quadrant.

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