Question

How to determine what to plot in order to get a straight line relationship and also what further information can be derived from the graph.

Answer 1

It appears very diffcult at forst glance but actually there is small concept that you must take into consideration for making such a plot. We basically know that equation of straight like is " y=mx+c". So whatever equation yoi have try to fit it in this form. If you variables then rearrange the equation in the above form and then compare x and y and then plot. If you have some exponential function on both sides then you may consider taking log on both sides in order to fit it in the above eaution of straight line.

Now that we know how to plot the curve. We know discuss what we can infer from the given curve. A given plot gives you Slope and Intercepts. When the plot is time vs something then intercept gives us that value of the parameter at time zero means initial condition. Slope of the plot tells us how the parameter varies with time etc.