Question

Joe drinks some milk every day. The graph shows the proportional

relationship of how many liters of milk Joe drinks to number of days.
Find the amount of milk he drinks in 7 days.

Answer 1

The correct answer is 14 liters

Step-by-step explanation:

When you look at the graph you can count the grid squares. In one day Joe drinks 2 liters of milk. So 7 times 2 is 14. That is your answer

Let me know if I did anything wrong. :)

Answer 2

Answer: 14 liters

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Step-by-step explanation:

Draw a vertical line up from x = 7 until you reach the diagonal red line. Mark point P at this location. Then from point P, move horizontally until you reach the y axis. You should get to y = 14.

See the diagram below.

The equation of this red line is y = 2x. Whatever the input x is, we double it to get y. So if x = 7, then y = 2x = 2*7 = 14

This means that Joe drinks 14 liters of milk in 7 days. Or you could say his rate is 14 liters per week.