Here we look at a great way to construct/sketch a straight line graph that requires just two points. The two-point gradient and...

The formula ​y​ = ​mx​ + ​c​ represents a linear equation that plots a straight line on a graph. The y and x represent the axes, m the...

There are several ways to find the equation for a quadratic sequence - I have found the following to be the best. Quadratic sequences...

In ‘trial & improvement’ questions, there are steps you can use to guarantee full marks. The idea is to gradually zero in on a reasonable...