Going from graph to rule. To determine the rule for a given linear graph, locate two points on the graph and use these to calculate the gradient and establish the \(y\)-intercept. Two commonly used ...

Linear functions arise in a wide range of applications because they often capture the essential relationships without becoming overly complicated. They span various fields, including economics, where ...

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.

The linear function is popular in economics. It is attractive because it is simple and easy to handle mathematically. It has many important applications. Linear functions are those whose graph is a ...

The same thing would be true for the first function above, f(x) = x²: n² would equal n.This would be a weird mathematics indeed (there are algebras in which this happens for some nonunit ...

Revise how to plot a linear equation graph. Learn how to read x and y ... Graphs of two or more straight lines can be used to solve simultaneous linear equations. The graph of a straight line can ...