Coordinates of a point are the real variables associated in an order to describe its location in space. Here we consider the space to be two-dimensional. Through a point O, referred to as the origin, we take two mutually perpendicular lines XOX’ and YOY’ and call them x and y axes respectively. The position of a point is completely determined with reference to these axes of means of an ordered pair of real numbers (x, y) called the coordinates of P where |x| and |y| are the distances of the point P from the y-axis and the x-axis respectively. X is called the x-coordinate or the abscissa of P and y is called the y-coordinate or the ordinate of P. For more details use the links given below:
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Exercises of Straight Line in Space – Class 12th RD Sharma Solutions |
| Straight Line in Space Exercise 28.1 |
| Straight Line in Space Exercise 28.2 |
| Straight Line in Space Exercise 28.3 |
| Straight Line in Space Exercise 28.4 |
| Straight Line in Space Exercise 28.5 |