Sally’s Software Inc. is a rapidly growing supplier of computer software to the Sarasota area. Sales for the last 5 years, 2009 to 2013, are given below.

Sales

Year ($ millions)

2009 .........1.1

2010 .........1.5

2011 .........2.0

2012 .........2.4

2013 .........3.1

a. Determine the logarithmic trend equation.

b. By what percent did sales increase, on the average, during the period?

c. Estimate sales for the year 2016.