help with 7 B please

S.stoy (4). Top 10 8= log (+) 28.5. 3-log et). 7. A $5000 investment that grows at multe of 6% can be modeled by the function: y = 5000 (1.06) a) Determine the value of the investment after 20 years. ySooo (1.06) 2 marks T= 1000 (10) .) $16035.68 2 marks b) How long would it take for the investment to double? Use your graphing calculator and show window dimensions and graph. GRAPH (sketch WINDOW Xmin = Xmax a Xscl Ymin = 2 marks Ymax Yscl = Xres = b) 2 marks c) How long would it take the investment to double using the rule of 72? Explain any differences. 72/6 = 12 2 marks Unit 6 Version 1 2019 Page 5 of 7 STCOTT S.stoy (4). Top 10 8= log (+) 28.5. 3-log et). 7. A $5000 investment that grows at multe of 6% can be modeled by the function: y = 5000 (1.06) a) Determine the value of the investment after 20 years. ySooo (1.06) 2 marks T= 1000 (10) .) $16035.68 2 marks b) How long would it take for the investment to double? Use your graphing calculator and show window dimensions and graph. GRAPH (sketch WINDOW Xmin = Xmax a Xscl Ymin = 2 marks Ymax Yscl = Xres = b) 2 marks c) How long would it take the investment to double using the rule of 72? Explain any differences. 72/6 = 12 2 marks Unit 6 Version 1 2019 Page 5 of 7 STCOTT