What is the domain of #g(x) = sqrt(-3x - 2)#?
1 Answer
Given function is
Now, one thing for sure is that we can't have a real valued function involving imaginary outputs. So that means the values under the square root should be positive.
So, from the function itself
But what side of the real numbered line should be included? Left side of
So again, we take the square root, and then square and rearrange, but this time, we say that the function inside the square root should be positive.
In a more simple way of saying it mathematically
So in the end,