Answer
(a) See graph
(b) BAC increases rapidly in $45$ minutes and then the measure slowly decreases
Work Step by Step
The given table indicates the number of hours and the blood alcohol concentration (BAC).
(a) To sketch the graph first take the $t$-values in the $x$-axis and BAC-values in the $y$-axis.
Then plot the points given in the table and join them by a curve.
(b) Observe the graph, the measure of the BAC increases rapidly in $45$ minutes and then the measure slowly decreases.
This indicates that the effect of alcohol is high at $45$ minutes after rapid consumption and then the alcohol slowly is metabolized over several hours.
