I have a graph plotted which makes a straight line (linear graph)

The points are as follows
X , Y
(.25, 0.593)
(.50, 1.161)
(.75, 1.762)
(1.0, 2.348)

I need to determine the linear range.

Also, can Beer's Law be applied?

3 answers

The relation between X any Y is highly, but not perfectly, linear over the range that you have plotted data.

It has nothing to do with Beer's law, which describes the exponential attenuation of radiation.
Still confused. How do you write out the linear range of a set of data points.
R=???
You seem to be confusing a lot of things. The quantity R describes the quality of a linear-regression straight-line fit to the data.