![]() ![]() (Both of these functions can be extended so that their domains are the complex numbers, and the ranges change as well. The sine function takes the reals (domain) to the closed interval (range). For example, the function takes the reals (domain) to the non-negative reals (range). The values taken by the function are collectively referred to as the range. But we need to use inequality which satisfies the shaded region. Step 1: Graph one of the inequalities as if it were an equation, y m x + b, using the y -intercept ( 0, b) and the slope, m. Informally, if a function is defined on some set, then we call that set the domain. Graphing a System of Two Linear Inequalities in Slope-Intercept Form. For example, a function that is defined for real values in has domain, and is sometimes said to be "a function over the reals." The set of values to which is sent by the function is called the range. The domain of a function,, is most commonly defined as the set of values for which a function is defined. ![]()
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