Here's the question you clicked on:
alyssababy7
Find the domain of the function. g(x) = 3x / x^2 - 81 A. (-∞, ∞) B. (-∞, -9)u (-9, 9)u (9, ∞) C. (81, ∞)
Factor the denominator. Remember that the denominator cannot be zero.
All real numbers, where x does not equal 9 or -9
well lets say it goes negative infinity to but not including -9, then from -9 to but not including 9 then on to infinity.
You tell me, i think you kno.