Composite functions are made when the output from one function is used as the input of another function. The names of the functions are written next to each other, with the function that is used first ...

Support your confidence in this topic by refreshing your knowledge of substitution and changing the subject of formulae. A function takes an input value, applies a rule to it, and produces an output ...

GCSE resits for English and Maths could be scrapped amid the pass rate falling to its lowest level in a decade. The current model requires students who fail these two core subjects at GCSE level to ...