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

The domain of (7/x)+(9/(x+9)) is x 0

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

domain

(\frac{7}{x}) + (\frac{9}{x + 9})

x < - 9 or - 9 < x < 0 or x > 0

Interval Notation

(- \infty, - 9) \cup (- 9, 0) \cup (0, \infty)

Solution steps

Find undefined (singularity) points:

x = 0, x = - 9

The function domain

x < - 9 or - 9 < x < 0 or x > 0

- 5 x + 1

y = - \frac{1}{2} x - 4, (3, - 4)

(- 11.5) (- 5.7)

f (x) = \frac{x ^{2}}{2}

f (x) = 0.5 x

What is the domain of (7/x)+(9/(x+9)) ?
The domain of (7/x)+(9/(x+9)) is x<-9\lor-9<x<0\lor x>0