Five friends go to a store to buy candy. The candy bars they want cost $1.20 each. This relation of the total cost of the candy bars to the amount of candy bars purchased can be written as y = 1.20x. The domain of the relation is 1, 2,5, 6, and 9. What is the range?
Well, think about it. If the domain of the relation is 1, 2,5, 6, and 9, what's the range? The total amount of candy bars and 1.20x. Make sure to remember the decimal when adding or multiplying!