Need help asap this affects my grade

This graph represents the relationship between the growth of a plant and the amount of time that has passed since the plant was planted.


Based on the data in the graph, which statement is true?



The plant grows 8 inches in 6 weeks.


The plant grows 3 inches in 6 weeks.


The plant grows 6 inches in 8 weeks.


The plant grows 4 inches in 3 weeks.