Plot the following points and draw a line through the points.
(0, 7), (4, –4)
Let the points be P (0, 7) and Q (4, -4)
Consider P
x co-ordinate = 0
y co-ordinate = 7
as x = 0 the point P lies on the Y-axis because it is 7 units above the X-axis and 0 units to the left or right from the Y-axis
Consider Q
x co-ordinate = 4
y co-ordinate = -4
point Q is 4 units to the right of Y-axis and 4 units below Y-axis