Question

the life of a AA battery can be predicted by the number of hours of use as a number of hours of use increases of the remaining battery power decreases to the linear Association is demonstrated in the scatterplot below is Tyler used 20% of the battery power in his AA battery for approximately how many hours has he use the battery

Answer 1

By the plotted graph, we can see that he used 20% of the battery, means the battery is 80% charged. Then, by the graph we can say that he has used the battery for 6 hours.