What is the domain of f(x)= 7/(5x+40) ?

The domain of f(x)= 7/(5x+40) is x -8

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domain of f(x)= 7/(5x+40)

domain

f (x) = \frac{7}{5 x + 40}

x < - 8 or x > - 8

Interval Notation

(- \infty, - 8) \cup (- 8, \infty)

Solution steps

Find undefined (singularity) points:

x = - 8

The function domain

x < - 8 or x > - 8

\frac{1}{x ^{2} - 1}

\frac{3 x + 2}{1 - x}

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

\frac{x + 1}{x + 2}

f (x) = \frac{x}{4 x ^{2} - 9}

What is the domain of f(x)= 7/(5x+40) ?
The domain of f(x)= 7/(5x+40) is x<-8\lor x>-8