Question

after a certain medicine is injected, its concentration in the bloodstream changes exponentially over time. the graph describes the medicines concentration (in milligrams per liter) over time (in hours). concentration (mg/l) 100 90 80 70 60 50 40 30 20 10 time (hours) what was the concentration of the medicine when it was injected?

Explanation:

Step1: Identify the time of injection

The time of injection is when \(t = 0\) hours.

Step2: Read the concentration value at \(t = 0\) from the graph

When \(t=0\), the concentration on the \(y -\)axis is 100 mg/l.

Answer:

100 mg/l