Performance Task For each part A through C, answer the question and include justifications. Protecting the sources of our drinking water is an important job. Part A A city's water and sewer department has implemented a a plan to reduce runoff containing fertilizer from entering the city's water source. The table shows the phosphorus load Phosphorus in a water source each year from when the plan was Load (Tons) implemented. Create a scatter plot of the data. Do you think the plan is working? Explain using the scatter plot. Part B How can you use this information to estimate the amount of phosphorus in the city's water source 6 years after the plan was implemented? What equation can you use to make an estimate? What estimate can you make? Part Cc Can the equation be used to estimate the amount of phosphorus in the city's water after 10 years? Explain why or why not. unit Reflect How can you use lines of fit to describe the relationship between two quantities? McGraw He Copyright