A farmer has 60 bales of hay stored in his barn. He feeds his cows 4 bales each day. Which graph represents the number of bales in the barn, y, after feeding his cows for x days?
What you must do for this case is find a function that suits the problem and graph it. We have: y: the number of bales in the barn x: days feeding his cows. y = -4x + 60 see graphic attached.