Some people find it helpful to think of the domain and range as people in romantic relationships if each number in the domain is a person and each number in the range is a different person then a function is when all of the people in the domain have 1 and only 1 boyfriend girlfriend in the range compare the two relations on the below they . If you find any duplicate x values then the different y values mean that you do not have a function remember for a relation to be a function each x value has to go to one and only one y value state the domain and range of the following relation is the relation a function. Virtual nerds patent pending tutorial system provides in context information hints and links to supporting tutorials synchronized with videos each 3 to 7 minutes long in this non linear system users are free to take whatever path through the material best serves their needs these unique features make virtual nerd a viable alternative to private tutoring. We discuss how to identify and write the domain and range of relations from a graph follow mr howard on twitter mrhowardmath note example 1 is x greater than 5 for domain and not x
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