Excel's intercept function takes the data points that define a line on a graph and calculates the y value for the point on the graph where x is equal to zero.

You can make a curved graph in Excel and Google Sheets using this tutorial. Learn how to convert sharp edges into smooth lines in a spreadsheet graph.

Learn how to draw and understand information presented by a line graph with this interactive guide by BBC Bitesize for KS2 pupils.

The representation of numbers in graphs should be proportional to the numbers themselves. Otherwise, they mislead or deceive. Examples of misleading graphs not drawn to scale and a figure with ...

Learn and revise how to plot coordinates and create straight line graphs to show the relationship between two variables with GCSE Bitesize Edexcel Maths.