(a) Recall, on the graph paper, each 'big' square with the 'darkened' green link measures 2 cm x 2 cm.
(b) Substitute the given values of x and y to find the unknowns.
(c) Remember to check the domain for the plot.
(d) Things that must be present when plotting the graph:
- label x and y axes
- markings on the axes must be clearly indicated/ written (including the origin)
- label the line with the given equation
- plot the points with crosses clearly
(e) To read points, the working is represented by the dotted lines.