Answer:
Step-by-step explanation:
Function 1 is defined for all x; there's a point on the graph for every x value. Thus the domain of Function 1 is "all real numbers." Notice that there is no graph for y smaller than 0. Thus, the range of Function 1 is [0, infinity).
For which x- and y-values is Function 2 defined? We see that x can be 0 or greater, and y 0 or greater. Thus, the domain of Function 2 is [0, infinity), and the range is [0, infinity).
