Which graph represents a function whose domain is the set of non-negative real numbers?

**The domain is the set of x-values used in the construction of the graph.**

**Non-negative x-values would start at x = 0 and move to the right.**

**A function can be determined with the vertical line test.**That is, if a vertical line is passed through the graph and it hits in more than one point, it is

__not__a function. In other words, each x-value can match up with only one other y-value.

A.) is a function whose domain consists of both positive and negative real numbers.

B.) Is not a function

D.) is a function whose domain consists of negative real numbers and zero

**C.) is a function whose domain is the set of non-negative real numbers.**

__Ask Algebra House__