The table shown below lists the cost y(in dollars) of purchasing cubic yards of red landscaping mulch. The variable x is the length(ft) of each side of a cubic yard. Construct a scatterplot and identify the mathematical model that best fits the given data.

x_(ft) y_(dollars)

1 6.2

2 10.6

3 15

4 19.4

5 23.8

6 28.2

What is the equation of the bestmodel? Select the correct choice below and fill in the answer boxes to your choice. Enter only nonzero values.

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

A.

y equals nothing x Superscript nothing

y=

x

B.

y equals left parenthesis nothing right parenthesis nothing Superscript x

y=

x

C.

y equals nothing x squared plus left parenthesis nothing right parenthesis x plus left parenthesis nothing right parenthesis

y=

x2+

x+

D.

y equals nothing plus left parenthesis nothing right parenthesis ln x

y=

+

lnx

E.

y equals nothing plus left parenthesis nothing right parenthesis x