Discussion:
Estimate the answer from the table or graph.
Q: The following graph shows the number of micrograms of Epinephrine in a person's bloodstream after being injected from 2 minutes to 5 minutes.
![1300_micrograms of Epinephrine.jpg](https://secure.tutorsglobe.com/CMSImages/1300_micrograms of Epinephrine.jpg)
Estimate the increase in the number of micrograms of Epinephrine in a person's bloodstream from 2.5 minutes to 4 minutes.