What is the domain of f(x)= 8/(3x+9) ?

The domain of f(x)= 8/(3x+9) is x -3

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domain of f(x)= 8/(3x+9)

domain

f (x) = \frac{8}{3 x + 9}

x < - 3 or x > - 3

Interval Notation

(- \infty, - 3) \cup (- 3, \infty)

Solution steps

Find undefined (singularity) points:

x = - 3

The function domain

x < - 3 or x > - 3

f (x) = \frac{x + 1}{x ^{2} - 4}

f (x) = \frac{- x ^{2}}{x ^{2} - 2 x + 8}

f (x) = - \frac{1}{3} x - \frac{1}{3}

9

f (x) = - 4 tan (3 π x)

What is the domain of f(x)= 8/(3x+9) ?
The domain of f(x)= 8/(3x+9) is x<-3\lor x>-3