Question

I measure a response variable y at several values of the explanatory variable x, which is "time of measurement". Plotting log y against time of measurement looks approximately like a straight line with a positive slope. I can conclude that:

Answer 1

A. I should also take the log of the time variable
B. The rate of growth of y is positive but slowing down
C. An exponential curve would fit will to a plot of y against time
D. Since only logs of numbers greater than one are positive, the line best fitted to the plot of y against time would have to have slope greater than one.
E. I should have taken the log of the time instead of log y

Answer 2

@jim_thompson5910

Answer 3

I'm not 100% sure, but I'm thinking that the independent variable x would be turned into log(x)

http://en.wikipedia.org/wiki/Log%E2%80%93log_plot