What is the domain of f(x)=(4x-5)/(5x-20) ?

The domain of f(x)=(4x-5)/(5x-20) is x 4

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domain of f(x)=(4x-5)/(5x-20)

domain

f (x) = \frac{4 x - 5}{5 x - 20}

x < 4 or x > 4

Interval Notation

(- \infty, 4) \cup (4, \infty)

Solution steps

Find undefined (singularity) points:

x = 4

The function domain

x < 4 or x > 4

f (x) = \frac{t - 5}{2 t - 16}

4 x^{2} - 1

f (x) = 1 - x + 3

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

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

What is the domain of f(x)=(4x-5)/(5x-20) ?
The domain of f(x)=(4x-5)/(5x-20) is x<4\lor x>4