I need to write an interval notion for
9<x<14 = how do I write this?
(9,14)
I thought I needed Brackets or such
Brackets are used for included endpoints.
(9,14) for 9 < x < 14
[9,14) for 9 <= x < 14
(9,14] for 9 < x <= 14
[9,14] for 9 <= x <= 14
To write the interval notation for the expression "9<x<14", you can use the round brackets () or square brackets [] to indicate whether the endpoints are excluded or included, respectively. Here's how you can represent it:
(9, 14)
Explanation:
- The parentheses () indicate that both 9 and 14 are excluded from the interval.
- The numbers 9 and 14 are referred to as the endpoints of the interval.
- The symbol "<" denotes that the values in the interval are greater than 9 and less than 14.
So, the interval notation "(9, 14)" represents all real numbers greater than 9 and less than 14.