What is the range of (x+4)/(x-4) ?

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

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range of (x+4)/(x-4)

range

\frac{x + 4}{x - 4}

f (x) < 1 or f (x) > 1

Interval Notation

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

Solution steps

The function range is the combined domain of the inverse functions

Find the inverse function(s) of:

\frac{x + 4}{x - 4}

Inverse of

\frac{x + 4}{x - 4} : \frac{4 + 4 x}{x - 1}

\frac{4 + 4 x}{x - 1}

Find the domain of each inverse function

Domain of

\frac{4 + 4 x}{x - 1} : x < 1 or x > 1

Combine the intervals

f (x) < 1 or f (x) > 1

f (x) = 4 x + 4

y = - x - 1

f (x) = x^{\frac{1}{4}} - 3

f (x) = lo g_{2} (x + 2)

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