Domain And Range Examples Ordered Pairs
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First identify the input values.
Domain and range examples ordered pairs. The space we live in to more. Now here lies a catch. Finding the domain of a function as a set of ordered pairs.
The domain is the set of x coordinates 0 1 2 and the range is the set of y coordinates 7 8 9 10. 2 10 3 10 4 20 5 30 6 40. In mathematics what distinguishes a function from a relation is that each x value in a function has one and only one y value.
N an infinite set of numbers the reals for example r 3 which is the set of all tuples a b c such that a b and c are real numbers i e. First identify the input values. Here the relation is given as a set of ordered pairs.
The domain set may or may not be equal to the set a as shown in figure 1. There are no restrictions as the ordered pairs are simply listed. The function y x has range.
Find the domain of the following function. 2 10 3 10 4 20 5 30 6 40. All real y 0.
Like a relation a function has a domain and range made up of the x and y values of ordered pairs. Write your answer using set notation. This corresponds to the set of y values when we describe a function as a set of ordered pairs x y.
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