You have already learnt about reading and plotting coordinates on a coordinate grid with positive numbers.
Now we extend the grid in all directions to include negative numbers.
Look carefully at how the axes are numbered.
Look at the point A.
Its x-coordinate is -5 on the x-axis.
Its y-coordinate is -3 on the y-axis.
Remember the x number comes before the y number.
A has coordinates (-5, -3).
Check that you understand how to get the coordinates of all four points of the parallelogram, shown below.
Remember to read the x before the y.