Answer:
12. Please find attached the required plot created with MS Excel
Step-by-step explanation:
12. The points are given in their <em>x </em>and <em>y</em>-coordinates as follows;
(-2, 5), and (5, 2)
To plot the points on a graph, MS Excel plot function can be used as follows;
1) We enter the <em>x </em>and <em>y-</em>values of the first point, side by side in cells on the Excel spreadsheet
We enter the <em>x </em>and <em>y-</em>values of the second point, beneath the first point on the spreadsheet as follows;

2) The four cells are selected and from the Insert menu within the Chart group, the Scatter (x, y) chart is selected
3) The plot created with MS Excel is attached