What is between two values or points.

Examples:

• All the numbers between 0 and 20

• The time between 9:00 and 9:15

• A line with definite end points, called a "Line Segment"

Note: an interval may or may not include the end values, so you need to be careful.

Examples:

• All the numbers between 0 and 20

• The time between 9:00 and 9:15

• A line with definite end points, called a "Line Segment"

Note: an interval may or may not include the end values, so you need to be careful.

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