A function is a rule or set of rules or instructions for changing one input number into another output number. Functions are written in function notation with the name of the function (usually f ...

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.

Activities (or production processes) are considered as building blocks out of which a technology is constructed. Postulates are developed by which activities may be combined. The main part of the ...