Each day, mr. samms randomly chooses 2 students from his class to serve as . there are 15 boys and 10 girls in the class. what is the probability that mr. samms will choose 2 girls to be ?

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.