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

Tracy earns approximately $0.121 per hour.

How to get the amount that Tracy earns

Given that the formula is given as

`P = 0.121^t`

where t is the number of hours worked

at 1 hour we would have:

`P = 0.121^1`

P = 0.121

hence the amount Tracy makes in one hour is

P = 0.121

Tracy's earning rate per hour can be interpreted as approximately $0.12 based on this equation.

This interpretation is derived from the relationship between Tracy's weekly pay and the time she dedicates to work, indicating that her hourly earnings are calculated at a rate of $0.12 for each hour worked.