What is a graph with a never ending line called?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

The temperature of chicken soup is 192.7°f. as it cools, the temperature of the soup decreases 2.3°f per minute. what is the temperature in degrees fahrenheit of the soup after 25 minutes? a. 27.3°f b. 57.5°f c. 135.2°f d. 250.2°f

Determine domain and range, largest open interval, and intervals which function is continuous.