M.3HSTR.36
Relate the domain of a function to its graph and, where applicable, to the quantitative relationship it describes. (e.g., 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.)
Khan Academy ResourcesIntro to rational expressionsDomain and range from graphFunction domain word problemsDetermine the domain of functionsModeling with linear equations: snowExamples finding the domain of functionsWorked example: domain and range from graphWorked example: determining domain word problem (real numbers)Worked example: determining domain word problem (positive integers)Worked example: determining domain word problem (all integers)

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