This is an example of a line graph. It is entitled ‘Weight during last six weeks of pregnancy’ and states ‘Source: Hospital records’. The horizontal axis, labelled as ‘Week of pregnancy’, is numbered from week 30 to 40. The vertical axis, labelled as ‘ Weight in lb’, is numbered from 160 to 174, starting from the bottom, where the two axes intersect. There is a smooth curved line starting at week 33 and about 163 lb that rises up towards week 40 and about 173 lb.