The following data represent the price and quantity demanded in 2009 for Dell personal computers.

Price ($/Computer) ……………………………. Quantity Demanded

2300 …………………………………………………….. 171

2000 …………………………………………………….. 152

1700 …………………………………………………….. 159

1500 …………………………………………………….. 164

1300 …………………………………………………….. 176

1200 …………………………………………………….. 180

1000 …………………………………………………….. 189

(a) Using a graphing utility, draw a scatter diagram of the data with price as the dependent variable.

(b) Using a graphing utility, build a logarithmic model from the data.

(c) Using a graphing utility, draw the logarithmic function found in part (b) on the scatter diagram.

(d) Use the function found in part (b) to predict the number of Dell personal computers that will be demanded if the price is $1650.