Question: what is the range of square root of x?
Answer: Graphical Analysis of Range of Square Root Functions The range of a function y = f(x) is the set of values y takes for all values of x within the domain of f. What is the range of f(x) = √x? The range of function of the form √x + k, (see red and green graphs below) is given by the interval:[0 , +∞).