Interpret, where appropriate, simple expressions as functions with inputs and outputs.

e.g. \(y = 2x + 3 \)

\(x \longrightarrow \boxed{×2} \longrightarrow \boxed{+3}\longrightarrow y\)

Interpret the reverse process as the ‘inverse function’.

Interpret the succession of two functions as a ‘composite function’.

[Knowledge of function notation will not be required]

[see also Translations and reflecions, 7.03a]