I doubt that you will ever be asked to draw a 'normal' graph. You're usually asked for a line of best fit. But make sure you can differentiate between the need for a line of best fit or a curve of best fit according to the data given. In our last physics trial it asked for a 'line of best fit' but the criteria indicated that a curve was necessary, rather than a straight line. Luckily I somehow misread the question and drew a curve.