# Answer to Question #5585 in Calculus for Freddy

Question #5585

find the domain of the function f(x)= x

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x^2 - 9

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x^2 - 9

Expert's answer

all real number without -3 and 3. Why? our function is rational function so its

domain is all real numbers without zeros of denominatorю so we must find zeros

of x^2-9 so x^2-9=0 so x^2=9 so x=3,x=-3.

domain is all real numbers without zeros of denominatorю so we must find zeros

of x^2-9 so x^2-9=0 so x^2=9 so x=3,x=-3.

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