Question

You start out with $20 and then spend money in a store where every item is $3. Y = -3x + 20. Use your graph for problem to predict the answer. What is the largest number of items you can buy?

Answer 1

With that equation, wouldn't it be simple to quickly finish the question by following the last 2 sentences?

Answer 2

You only have $20. Your inequality would be 3x has to be less than or equal to 20. You could buy 6 items. You would have 2 dollars leftover.