What is the domain of (7x)/(2x+9) ?

The domain of (7x)/(2x+9) is x -9/2

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domain of (7x)/(2x+9)

domain

\frac{7 x}{2 x + 9}

x < - \frac{9}{2} or x > - \frac{9}{2}

Interval Notation

(- \infty, - \frac{9}{2}) \cup (- \frac{9}{2}, \infty)

Solution steps

Find undefined (singularity) points:

x = - \frac{9}{2}

The function domain

x < - \frac{9}{2} or x > - \frac{9}{2}

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

ln (3.9 x + 3.8) - 3.7

f (x) = \frac{3 x + 2}{4 x - 20}

f (x) = \frac{3 x + 1}{x ^{2} - 1}

f (x) = x^{2} - x^{4}

What is the domain of (7x)/(2x+9) ?
The domain of (7x)/(2x+9) is x<-9/2 \lor x>-9/2