SOLUTION: Given f(x)= x/(x^2-4),find and simplfy f(3x). Im so confused help please!!

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Question 760114: Given f(x)= x/(x^2-4),find and simplfy f(3x). Im so confused help please!!
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
That means, replace x with 3x, and then simplify.
f%283x%29=%283x%29%2F%28%283x%29%5E2-4%29
Not much more you can do with it.

3x%2F%289x%5E2-4%29=%283x%29%2F%28%283x%2B2%29%283x-2%29%29 which would be helpful in graghing since it shows two vertical asymptotes at x=-2/3 and x=2/3; and a root is at x=0.