What is the domain of f(x)=(x+4)/(x-1) ?

The domain of f(x)=(x+4)/(x-1) is x 1

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domain of f(x)=(x+4)/(x-1)

domain

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

x < 1 or x > 1

Interval Notation

(- \infty, 1) \cup (1, \infty)

Solution steps

Find undefined (singularity) points:

x = 1

The function domain

x < 1 or x > 1

lo g_{2} (x^{2} - x - 90)

9 x + 5

x + 1 + 1 - x

f (x) = \frac{( 3 x - 8 )}{x ^{2} - 9 x + 20}

lo g_{2} (5 - x)

What is the domain of f(x)=(x+4)/(x-1) ?
The domain of f(x)=(x+4)/(x-1) is x<1\lor x>1