What is the domain and range of f(x)=x^2+4
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domain and of f(x)=x^2+4 and f(x)=(x+1)^2-6 is all real numbers. Remember domain just means the set of values that can be x in this f(x) excluding any numbers that can't be substituted for x. All real numbers w/out exception can be a that's the domain.
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