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OpenStudy (anonymous):
I need help please i will give medal! Find the domain of the function. f(x) = -2x + 4 A. (-∞, 0) (0, ∞) B. (-∞, ∞) C. [-4, ∞) D. (0, ∞)
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OpenStudy (anonymous):
@ShailKumar please help
OpenStudy (anonymous):
@amistre64 @abb0t
OpenStudy (anonymous):
thank you can you guys help with more
OpenStudy (amistre64):
one way to find the domain is to see if the function has an inverse; if it does, the range of the inverse is the domain.
OpenStudy (amistre64):
the more logical method is to simply assume its all real numbers and then pull out any values that make for bad mathing.
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OpenStudy (anonymous):
Thank you @amistre64
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