Question

Plot the points P(2, 4) Q($-$3, 4) and R(0, 4). Are these points collinear? If so, draw the line passing through them. Justify your result.

Answer 1

As the y-co-ordinates of the three points are equal to 4,
the points P(2, 4), Q($-$3, 4) and R(0, 4) are collinear.
The points, and the line passing through these points, are shown below in the graph.