George P. answered 04/05/13
Penn State Instructor exp.: AP Calculus AB/BC|PreCalculus|Trig|Algebra
Just to clarify: Do you want to graph the following function? :
g(x) = -√(x+2) + 2 where the (x+2) is the radicand (under the radical)
Do you know how to graph y = -√x?
If so, do you know how the (x+2) changes the graph of y = -√x ?
Then, do you know how the graph changes if you then add 2 at the end?
An alternate method would be to first find the domain of the function, and
use values of x that give a perfect square for x+2 and then plot points, making
sure you remember the domain, and remember how y = √x looks.