![]() At the left end of each interval, use [ with each end value to be included in the set (solid dot) or ( for each excluded end value (open dot). The domain is the set of x -values of the relation and the range is the set of y -values of the relation.In simple words, we can define the domain of a function as the possible values of x that will make an equation true. Identify the intervals to be included in the set by determining where the heavy line overlays the real line. What is the Domain and Range of a Function The domain of a function is the input numbers that, when plugged into a function, the result is defined.Given a line graph, describe the set of values using interval notation. A square bracket indicates inclusion in the set, and a parenthesis indicates exclusion from the set. The domain of a function f(x) is defined as the set of all possible values of x such that function f(x) is well defined whereas the range of the function f(x). The endpoint values are listed between brackets or parentheses. Interval notation is a way of describing sets that include all real numbers between a lower limit that may or may not be included and an upper limit that may or may not be included. The range is the set of all real numbers. \) which is read as, “the set of all x such that the statement about x is true.” For example, The domain is obtained by setting the argument of the function greater than 0. The domain of a function is the complete set of possible values of the independent variable.
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