Function notation (AQA GCSE Further Maths): Flashcards

Function f with input x producing a specific output

Exactly one output for every input

Transforms numbers following a set rule

Substitute given value for x everywhere

$27$

$6$

One input gives two outputs, violates uniqueness rule

Brackets, powers, mult/div, add/sub

$14$

$10 - 12x$

$x = -4$

Shows what happens when you input x