Can someone explain what quadrant this would be in and the domain and range. I have no idea how to graph it.

G(x)= -3sin^-1 (2x)

the sin of some angle is 2x

but the range of the sin is between -1 and +1
so x must be between -1/2 and +1/2
so the domain of x is -1/2 to + 1/2

now the angle is not limited to between 0 and 360 degrees so it could be anything at all