A company manufactures and sells scientific calculators. Thefunction P=7.87.8x2plus+59705970xminus?290 comma 000290,000?,x??150, gives the profit if x thousand calculators are manufacturedand sold. Use the table feature of a graphing calculator or use aspreadsheet to make a table of values for the profit function withx=?0, 5, 10,? ..., 150. Use the table to answer the followingquestion.
Approximately how many calculators must be sold in order for thecompany to make a? profit?