Operations Involving Functions (Leaving Cert Mathematics): Flashcards

$f(x) = ...$, $f: x → ...$, $y = ...$

Function notation

Mapping notation

Equation form

Output value when input is 3

To distinguish between multiple functions

One function applied to result of another

$g$ after $f$

$g \circ f$

No, order matters

Apply $f$ first, then $g$ to result