Revise how to plot a linear equation graph. Learn how to read x and y coordinates from a graph in this BBC Bitesize maths KS3 guide.

Any equation that can be rearranged into the form y = m x + c, will have a straight line graph. m is the gradient, or steepness of the graph, and c is the y - intercept, or where the line crosses ...

Learn how to plot coordinates and create straight line graphs to show the relationship between two variables. Also, plot graphs that contain a negative coefficient of x.

Learn about and revise how to use and interpret graphs with this BBC Bitesize GCSE Maths Edexcel study guide.

All real-life graphs can be used to estimate or read-off values.The actual meaning of the values will depend on the labels and units shown on each axis. Sometimes: This graph shows the cost of ...