Homonym: -9 (Temperature)
The number "-9" is a negative integer that represents a value less than zero. In mathematics, negative numbers are used to indicate a deficit or a loss. For example, if you have 9 fewer apples than you started with, you could represent that situation with the number "-9."
In the context of the number line, "-9" is located to the left of zero, indicating it is a smaller value. Negative numbers like "-9" are often used in various fields, including finance, where they can represent debt or a loss in profit.