Language of Functions (Edexcel A-Level Mathematics): Quizzes

$\mathbb{N} = \{1, 2, 3, \ldots\}$

The set of $x$ values we feed the function

Function undefined for $x \leq -3$

$f(x) \geq 6$

$y \geq e^2$

$f(x) \leq 2$

$2$

Draw horizontal line; if cuts twice

One-to-many

Many-to-many