Question

What is the domain of the function

Answer 1

Here is the function

Answer 2

well the value inside the square root needs to be greater than or equal to zero. This will allow a domain in the set of real numbers.

negative square roots are undefined and need complex numbers to evaluate them.

so you need to solve

\[6x + 42 \ge 0\]

to obtain the domain.

Answer 3

ok thanks! I can do it from here:)