a. Find the cubic function that is the best fit for the data in the table below. b. Find the quartic function that is the best fit for the data in the table. X y 1 -6 2 -2 3 0 4 8 5 28 6 150 7 1450

a. Find a power function that models the data below. b. Find a linear function that models the data. c. Visually determine if each model is a good fit.   x 4 5 7 9 y 6.7 8.7 13 17.1   a. The power function that best fits the data is yequals nothing . ​(Use integers or decimals for any numbers in the expression. Round to the nearest thousandth as​ needed.) b. The linear function that best fits the data is yequals nothing ​(Use integers or decimals for any numbers in the expression. Round to the nearest thousandth as​ needed.) c. Is each model a good​ fit?       x y4 6.75 8.77 139 17.1

x y 6 10 7 12 10 18 11 20 13 24 Which is the function described by the table of ordered pairs?    A.  y = 2x - 2  B.  y = x + 5  C.  y = 2x + 2  D.  y = x + 4

3. Jay is driving home from his family's lake house which is 398 miles away from where he lives. He drives at an average speed of 58 miles per hour. Write a linear function that represents Jay's total distance from home, D(t), after t hours. a. b. How far away from home is Jay after driving for 2 hours? C. How many hours will it take for Jay to get home? Lesson 1 Unit 3: Inequalities