Replace each y-value in the table with its logarithm, log y. Find the equation of the regression line for the transformed data. Then construct a scatter plot of (x, log y) and sketch the regression line with it. What do you notice?

Use the data shown in the table given below, which shows the number of bacteria present after a certain number of hours.

Number of hours, x               Number of bacteria, y

1 ……………………………………….         165

2 ……………………………………….         280

3 ……………………………………….         468

4 ……………………………………….         780

5 ……………………………………….        1310

6 ……………………………………….        1920

7 ……………………………………….        4900