Find the domain of the function. g(x) = 3x/x^2-81
A. (-infinity, infinity) B. (-infinity, -9) (-9,9) (9,infinity) C. (81, infinity) D. (-infinity, 0) (0, infinity)
So the answer would be a
sorry qpHalcy0n that person confused me

Question

Find the domain of the function. g(x) = 3x/x^2-81
A. (-infinity, infinity) B. (-infinity, -9) (-9,9) (9,infinity) C. (81, infinity) D. (-infinity, 0) (0, infinity) 
So the answer would be a
sorry qpHalcy0n that person confused me

anonymous · Answer

denominator can't be 0, So find x values that make x^2-81=0
factorizing: (x-9)(x+9)=0 so answer: B. (-infinity, -9) (-9,9) (9,infinity)

anonymous · Answer

Okay thank you some one was helping me but we kept having a rude person interrupt and I kept getting confused

anonymous · Answer

I was confused if you us -9,9 or not

anonymous · Answer

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