Graphs are often used in everyday life to give information about how two quantities are related. The gradient and intercept of the graph can be interpreted from the graphs. Before reading this ...

When the equation of a straight line is in the form \(y = mx + c\), \(m\) and \(c\) are numbers which give useful information about the graph of the line. In the equation \(y = mx + c\), \(m\) is ...