r (m)	Electric Potential V (V)
1	53.5 V
2	26.6 V
3	17.9 V
4	13.5 V
5	10.8 V
6	9.0 V
7	7.7 V
8	6.8 V

29. Using the table above, make a graph in Excel of voltage V and distance r to determine the constant k again using the appropriate trendline. (The same hint as above applies, but the work will be slightly different because the equation is different.)

Insert the graph below and write down the k value that you found.

k constant from trendline equation= ?

Accepted value of k constant =?