If g(x) = 4√x-8 , which statement is true?

We have the following function:



So if we graph this function we will get the Figure below. Thus, let's study both the equation and the graph to get some conclusions. Therefore, we can assure these statements:

First. The function is defined only for as shown in the Figure. This is also true because of where must be greater (or equal) than zero.

Second. The range of the function are the values of .

Third. If creases then always creases, too.