Question

The domain of the real function f(x) = 4-x / x-4

Answer 1

Answer:

We can write the domain of f(x) in set builder notation as, {x | x ≥ 0}. If the domain of a function is all real numbers (i.e. there are no restrictions on x), you can simply state the domain as, 'all real numbers,' or use the symbol to represent all real numbers.

Answer 2

Answer:

The domain and range of the real function f defined by f(x) = (4 - x)/(x - 4) is given by

A. Domain = R, Range = {–1, 1}

B. Domain = R – {1}, Range = R

C. Domain = R – {4}, Range = {– 1}

D. Domain = R – {– 4}, Range = {–1, 1}

Explanation:

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