Question

Determine the domain of the function. f as a function of x is equal to thirteen divided by three minus x.

Answer 1

hello :

f(x) = 13/ (x-3)

f(x) exist : x - 3 ≠ 0

x - 3 = 0 : x = 3

the domain of the function : f is D = ]-∞:3[ U] 3;+∞[