the questino is
A)find domain and range
b)find domain and range of inverse function
c)Find an explicit formula for the inverse function as a function of x.
a)domain of original function is [4, infinity)
How do I find the range?
b)domain of inverse function is range of original function, range of inverse function is domain of original function so [4, infinity)
c) the formula for the inverse function is
i would think that the range would be [9, infinity), since 9 would be the lowest number than can still make the square root non negative, but the book's answer says the range of the original function/domain of inverse is [-5, infinity) does this have something to do with the restricted domain? if so, what do I do to get this range?