Interval notation is a mathematical notation used to describe sets of numbers lying within a specific range. It uses brackets and parentheses to denote inclusive and exclusive bounds, respectively.
5 Must Know Facts For Your Next Test
Square brackets $[a, b]$ indicate that both endpoints $a$ and $b$ are included in the interval.
Parentheses $(a, b)$ indicate that both endpoints $a$ and $b$ are excluded from the interval.
A combination such as $[a, b)$ means that $a$ is included but $b$ is excluded.
$(-\infty, b)$ or $(a, \infty)$ can be used to represent intervals extending infinitely in one direction.
Interval notation can describe the domain and range of functions effectively.