Find the domain and range of the function: f(x) = x^2 + 11 I have the domain as (-∞,∞) and the range as (11,∞). did I get them right?
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Originally Posted by dc52789 Find the domain and range of the function: f(x) = x^2 + 11 I have the domain as (-∞,∞) and the range as (11,∞). did I get them right? Yes The domain is (-∞,∞) because you can compute f(x) for every x real The range is (11,∞) because whatever x real For each ordinate y greater than 11 you can find at least one abscissa x for which f(x) = y
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