Each table in the accompanying LineFit data contains a set of data that describes a functional relationship between the dependent variable y and the independent variable x. Construct a scatter chart of each data set and use the Trendline tool in Excel to determine thebest-fitting functions to model these data sets. Do not consider polynomials beyond the third degree

Data:

x y

1 -103.4

1.5 -35.1

2 -5.6

2.5 -18.0

3 -5.8

3.5 -3.7

4 -2.0

4.5 -0.1

5 0.0

5.5 0.2

6 0.9

6.5 3.3

7 8.9

7.5 9.9

8 20.5

8.5 51.2

9 102.1

9.5 143.0

10 24.7

10.5 188.2

What is the equation for thebest-fitting function for the first dataset? Select the correct choice below and fill in any answer boxes to complete your choice.

(Type integers or decimals rounded to three decimal places asneeded.)

A.

y=

nothing

ln(x)+

B.

y=

nothing

x3+

x2+

x+

C.

y=

nothing

x+

D.

y=

nothing

x2+