Using a two-sided graph solves this dilemma by displaying the two series in relation to two different vertical scales, one on each side of the graph.

Find out how to interpret stocks and portfolios through a security market line, or SML, graph as part of the Capital Asset Pricing Model, or CAPM.

If you need to create a Line Chart and Scatter Plot in Excel, read through this article. We have also explained which one is right for you.

Learn how to interpret and construct graphs in this guide for students aged 11 to 14 from BBC Bitesize.