Houghton Mifflin Harcourt Publishing Company A relation is a set of ordered pairs x y where x is the input value and y is the output value The domain is all possible inputs of a relation and the range is all possible outputs of a relation For example the given relation represents the number of whole wheat cracker boxes sold and the money earned 1 4 2 8 3 12 4 16 Domain 1 2 3 4 Reflect Range 2 12 16 For the following relation the input x is the ages of boys and the output y is their corresponding height in inches 1 41 8 45 9 49 10 52 10 53 11 55 12 59 B Fill the values in the table Plot the points on the graph Complete the mapping diagram E State the dornain of the relation State the range of the relation Height in 60 50 40 30 20 10 0 8 9 10 11 12 X 10 Age yr ID 2 4 6 Age yr Height in 41 45 49 52 53 55 59 45 419 52 Fr 8 10 12 nhrr 19 appears twice in the x column of the table How many times is it written in