Answer:
The position
of a point on a grid can be given by a pair of numbers which are
its distances from two lines called the xaxis and the yaxis.
A
is the point (4,3). The first number 4 is called the xcoordinate.
The second number 3 is called ycoordinate. The coordinates must
be given in the right order. The point (3,4) is at B.
Co ordinates
given in this way are called Cartesian after the French mathematician
Rene Descartes 15961650.
