McGraw Hill Integrated II, 2012
MH
McGraw Hill Integrated II, 2012 View details
7. Special Functions
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Exercise 34 Page 152

Recall that the domain is the set of all possible x-values and the range is the set of all the possible y-values.

Domain: All real numbers.
Range: All integers

Practice makes perfect
When determining the domain and range from a graph, we need to notice the shape of the graph. Recall that the domain is the set of all possible x-values and the range is the set of all the possible y-values. Let's look at the graph.


The x -values on the graph continue in both direction. Since there are not restrictions, the domain is all real numbers. This step function shows the y -values as all integers.