Algebraic formulae - Edexcel Function notation – Higher Formulae are used in everyday life, from working out areas and volumes of shapes to converting units of measurement.

Determining the equation of a straight line Function notation The equation of a straight line can be worked out using coordinates and the gradient, and vice versa.

The main part of the paper is concerned with the discrete type model and the use of a linear maximization function for finding the "optimum" program. The mathematical problem associated with this ...