First draw a coordinate plane.
\ \Then plot the points Z (4, 2), R (4, 2) on the coordinate plane.
Draw a line passing through the points R, and Z.
\Points that lie on the same line are called collinear.
\Points R, Z and S are collinear. So, the point S lies on the line .
Plot the point S on the line.
Points Q, R, Z and S are not collinear. So, the point Q lies on the coordinate plane
\except the line.
Plot the point Q anywhere in the coordinate plane except on the line.
\The figure is
\