he depreciationD(in millions of dollars) of a company's assets from 2009 through 2013 can be approximated by the function

D(t) =1.7

t+3.9

wheret= 0

represents 2009.(a) Describe the transformation of the parent functionf(t) =

t

.

(Select all that apply.)

A. horizontal shift of 3.9 units to the right

B. vertical shrink

C. vertical shift down 1.7 units

D. horizontal shift of 3.9 units to the left

E. vertical stretch

(c) According to the model, in what year will the depreciation of the company's assets be approximately6 million dollars? (Round your answer to the nearest year.)

______________

(d) Rewrite the function so thatt= 0

represents 2011.

D(t) =

Explain how you got your answer.