math

1.a Find a cubic function that models the data in the table. Report the model with three decimal places.

b. Find a linear function that models the data. Report the model with three decimal places.

C Visually determine which model is the better fit for the data.

x	1	2	3	4	5	6
y	-2	-1	0	4	8	16

Y=

2.

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	1	2	3	4	5	6	7
y	0	4	16	-20	-2	150	1450

(Simplify your answer. Use integers or decimals for any numbers in the expression. Round to three decimal places as​ needed.)