1. What is Relation?
2. What is domain?
3. What is Range?
4. How can you identify domain and range from a given relation?
5. What are the different ways or showing relation? give example.
6. What are the different types of relation? show example.You can use either from ordered pair, table, mapping
diagram or graph.
7. What is function?
8. When can you say that a relation is a function? When it is not? Give example.
9. What is dependent and independent variable.
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Answer:
The domain is the set of all "x" values and the range is set of all "y" values in a set of ordered pairs. Remember that ordered pairs are written as (x, y). When looking at a set of ordered pairs, find the domain by listing all the x values from the relation. Find the range by listing all the y values from the ordered pairs. Repeated values within the domain or range don't have to be listed more than once. In order for a relation to be a function, each x must correspond with only one y value. If an x value has more than one y-value associate with it -- for example, in the relation {(4, 1), (4,2)}, the x-value of 4 has a y-value of 1 and 2, so this set of ordered pairs is not a function. If each x-value corresponds with only one y-value, then the relation is a function.