Question

Tracy earns a commission at the iewelry store where she works. The scatter plot shows the relationship between the time t, in hours, Tracy works weekly and her weekly pay P, in hundreds of

dollars. The equation of the trend line is P = 0.121. Approximately how much does she earn per hour?

Answer 1

The rate at which Tracy earns money per hour is $12.00 for every one hour worked.

Approximately how much does she earn per hour?

From the question, we have the following parameters that can be used in our computation:

P = 0.12t

The equation of the trend line P = 0.12t, where P is Tracy's weekly pay in hundreds of dollars and t is the time she works weekly in hours.

In this equation, the coefficient of t is 0.12.

This means that for every one unit increase in t (one additional hour worked), Tracy's weekly pay increases by 0.12 units.

So, the rate at which Tracy earns money per hour is 0.12 units of pay for every one hour worked.