A coordinate is a point on a graph that is a representation of the numbers on the x and y axes, if a line is drawn from that point to the various axes.
For example the coordinate of a point c on a graph is written as C (x,y)
from the graph at point A, if a line is drawn from that point to touch that x and y axes, it will touch x axis at -2.5 (between -2 and -3) and y axis at -1.5 ( between -1 and -2), while the point B will touch the x axis at 4.5 (between 4 and 5) and the y axis at -3.5 (between -3 and -4). hence the coordinates of A and B are (-2.5, -1.5) and (4.5, -3.5) respectively.
