The graph below shows the numbers of cups of strawberry juice that are mixed with different numbers of cups of lemon-lime soda to make servings of strawberry soda: A graph is shown. The values on the x axis are 0, 1, 2, 3, 4, 5. The values on the y axis are 0, 7, 14, 21, 28, 35. Points are shown on ordered pairs 0, 0 and 1, 7 and 2, 14 and 3, 21 and 4, 28. These points are connected by a line. The label on the x axis is Lemon-Lime Soda in cups. The title on the y axis is Strawberry Juice in cups.

What is the ratio of the number of cups of strawberry juice to the number of cups of lemon-lime soda?

1:28
28:1
7:1
1:7