% do tarmaco no organismo a) 0.6 mathrm(mg) b) 2 mathrm(mg) c) 3 mathrm(mg) d) 6 mathrm(mg)

## Step 1: Understand the Graph<br />### The graph represents a decreasing function, likely showing the concentration of a substance (possibly a drug) in an organism over time. The x-axis represents time, and the y-axis represents the concentration of the substance.<br /><br />## Step 2: Analyze the Data Points<br />### The data points show a rapid decrease in concentration from 100 mg at time 0 to approximately 2 mg at time 8. This suggests that the concentration decreases exponentially over time.<br /><br />## Step 3: Determine the Concentration at Specific Time Points<br />### Based on the given options, we need to determine which concentration value matches one of the plotted points or is close to it. At time 8, the concentration is approximately 2 mg.<br /><br />## Step 4: Match with Given Options<br />### Among the provided options, \( 2 \mathrm{mg} \) corresponds to the concentration at time 8, as observed from the graph.