Answer
See below.
Work Step by Step
The domain of the function consists of all x-values such that there is a point (x,f(x)) on the graph.
We test the values on the x-axis when we want to determine the domain.
The range of f are all values of y, such that there is a point (x,y) on the graph.
We test the values on the y-axis when we want to determine the range.
