Domain and range of a function (AQA GCSE Further Maths): Flashcards

All possible $x$-values (input values) for a function

All possible $y$-values or $f(x)$ values a function can produce

Range depends directly on domain

Function works for any real number

Include the endpoint

Exclude the endpoint

Decreases as $x$ increases

$f(x) \geq 0$

Positive result or zero

Leftmost to rightmost point on $x$-axis

Lowest to highest point on $y$-axis

Points not included

Points included

Graph continues indefinitely

Evaluate at domain boundary points