Stats help please?

Question

Stats help please?

hockeychick23 · Answer

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: 

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

hockeychick23 · Answer

@rational can you help me with this please?

rational · Answer

$$\ln y=mx+b$$

means
$$y=e^{mx+b}$$

so an exponential curve works well for modelling

hockeychick23 · Answer

@rational does that mean it would be C. An exponential curve would fit will to a plot of y against time?

rational · Answer

Yes

hockeychick23 · Answer

Ok thank you!