Question

Tony has 6 dollars in change in his car. Every time he drives to visit his grandma, he pays $1.25 in tolls. Which graph represents the change Tony has in his car?

graph of line going through (0, 1.25) and (1, negative 5)
graph of line going through (0, 0) and (4, negative 5)
graph of line going through (0, 6) and (1, 0)
graph of line going through (0, 6) and (4,1)

Answer 1

After paying 4 tolls, Tony will have 4×$1.25 = $5.00 less change in his car. At that point, he will have $1 in change. The appropriate choice is
  graph of line going through (0, 6) and (4,1)

Answer 2

Answer:

After paying 4 tolls, Tony will have 4×$1.25 = $5.00 less change in his car. At that point, he will have $1 in change. The best choice is

graph of line going through (0, 6) and (4,1)