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OpenStudy (anonymous):
f(x) = x2 + 2x − 1 to its domain.
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OpenStudy (anonymous):
Well what values of x can you plug in?
OpenStudy (anonymous):
2,-3,-2,3
OpenStudy (anonymous):
Well the domain is all the input values for which the function is defined. Meaning it gives us a value a output for each value. In your case it's all real numbers \[/\mathbb{R} \]
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