What is the domain of f(x)=(x+4)/(9x+4) ?

The domain of f(x)=(x+4)/(9x+4) is x -4/9

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domain of f(x)=(x+4)/(9x+4)

domain

f (x) = \frac{x + 4}{9 x + 4}

x < - \frac{4}{9} or x > - \frac{4}{9}

Interval Notation

(- \infty, - \frac{4}{9}) \cup (- \frac{4}{9}, \infty)

Solution steps

Find undefined (singularity) points:

x = - \frac{4}{9}

The function domain

x < - \frac{4}{9} or x > - \frac{4}{9}

- x^{2} - 4

(9, 9), (18, 8)

y = \frac{x - 1}{2}

f (x) = 3^{x} - 9

y = x - 3, (3, - 2)

What is the domain of f(x)=(x+4)/(9x+4) ?
The domain of f(x)=(x+4)/(9x+4) is x<-4/9 \lor x>-4/9