![]() ![]() The first method is to use a graphing calculator. 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). There are three methods that can be used to find the domain and range of points. ![]() If there is a denominator in the function’s formula, set the denominator equal to zero and solve for x. Identify the intervals to be included in the set by determining where the heavy line overlays the real line. Howto: Given a function written in an equation form that includes a fraction, find the domain Identify the input values. ![]() Learn more about: Domain and range Tips for entering queries. It also shows plots of the function and illustrates the domain and range on a number line to enhance your mathematical intuition. Once you’ve mastered this feature you’ll be cranking out incredible graph art in no time. WolframAlpha is a great tool for finding the domain and range of a function. Given a line graph, describe the set of values using interval notation. Limiting the domain and range on the Desmos graphing calculator is simple. A square bracket indicates inclusion in the set, and a parenthesis indicates exclusion from the set. 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. \) which is read as, “the set of all x such that the statement about x is true.” For example, ![]()
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