=+17. A small company has developed an improved process for making solar panels. The company needs to set its prices and wants those prices to reflect the efficiencies of producing larger batches. The data show the following:

#Units Cost per Unit 10 7.389 20 6.049 30 4.953 40 4.055 50 3.320 60 2.718 70 2.459 80 2.225 90 2.013 100 1.822 120 1.648 140 1.491 160 1.349 180 1.221 200 1.105 A scatterplot of Cost per Unit vs. #Units looks like this:

6.0 3.0 1.5 Cost per Unit 4.5 40 80 160 200 Units 120