SOLUTION: Find the domain of f (x) = 7 + 3x + 21 , and express it using interval notation.

Question 90026: Find the domain of f (x) = 7 + 3x + 21 , and express it using interval
notation.
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
f (x) = 7 + 3x + 21
Domain is any real number. Beacause, you can plug-in any number (zero, negative or positive) and you will still get a real number.
(+infinity , -infinity)
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