Brackets real Set Interval included x two Parenthesis numbers not all included y
The domain of a function is all of the values . Most quadratic functions have a domain of . The range of a function is all of the values . There are ways to write domain and range . notation uses parenthesis and brackets . are used if the number is not included . are used if the number is included . notation uses inequality signs . Less than signs are used if the number is . Less than or equal to signs are used if the number is .