How do you know when to use brackets or parenthesis in finding domain or range?
1 Answer
Please see below.
Explanation:
Use a bracket (sometimes called a square bracket) to indicate that the endpoint is included in the interval, a parenthesis (sometimes called a round bracket) to indicate that it is not.
Brackets are like inequalities that say "or equal"
parentheses are like strict inequalities.
People sometimes say this is
People sometimes say this is
Of course, mixed intervals
The symbols
Quick examples:
Domain of
Domain of