Which of the following does NOT represent a domain?

the amount Foster pays per apple at the grocery store

the time that has passed while heating water

the number of pictures taken on a camera that will hold 1 gigabyte of pictures

the total time Jess has been running as she tracks how many miles she can run

Question

Which of the following does NOT represent a domain?

 the amount Foster pays per apple at the grocery store

 the time that has passed while heating water

 the number of pictures taken on a camera that will hold 1 gigabyte of pictures

 the total time Jess has been running as she tracks how many miles she can run

anonymous · Answer

I'm pretty sure it's D. Total time does not mean domain. The definition is here. http://www.mathsisfun.com/definitions/domain-of-a-function.html