Standard
CCSS.Math.Content.HSF.IF.B.5 - Objective
Relate the domain of a function to its graph and, where applicable, to the quantitative relationship it describes. For example, if the function h(n) gives the number of person-hours it takes to assemble n engines in a factory, then the positive integers would be an appropriate domain for the function.
High School Functions · Common Core State Standards · Common Core 2010