Question

I need help with this question part 1 and 2 or part a and b please.

Answer 1

(a)

`k(x)=(x+5)/(x-11)`

The graph of the function is;

Thus, the domain of the function in interval notation is;

`(-\infty,11)\cup(11,\infty)`

(b)

`f(x)=(x+5)/(x^2+11)`

The graph of the function is;

Thus, the domain of the function in interval notation is;

`(-\infty,\infty)`