Explain why the square root of –x, , is not necessarily undefined and what this means about the domain and range of f(x) =
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√k is defined when k is greater or equal to zero if x is less than or equal to zero implies (-x) is greater than equal to zero.
Domain is the set of all the values for which the function is defined while range is set is of all the value f(x) take.
Domain is the set of all the values for which the function is defined while range is set is of all the value f(x) take.
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