Let f(x) = x^2 - 16 and g(x) = x + 4. Find f/g

Question

and its domain.
(1 point)
• x + 4; all real numbers except x : 4
• x + 4; all real numbers except x : -4
x - 4; all real numbers except x : 4
• x- 4; all real numbers except x : -4
Where : means doesn’t equal

Answer 1

f/g = (x^2 - 16)/(x + 4)

The domain of f/g is all real numbers except x cannot equal -4. So the correct answer is:
• x + 4; all real numbers except x ≠ -4