3.25 Peak Current Using a chemical proce- dure called differential pulse polarography, a chemist measured the peak current generated (in microamperes) when a solution containing a given amount of nickel (in parts per billion) is added to a buffer. The data are shown here:

Use a graph to describe the relationship between x and y. Add any numerical descriptive measures that are appropriate. Write a paragraph summarizing your results.

x=Ni (ppb) y=Peak Current (MA) 19.1 0.095 38.2 0.174 57.3 0.256 76.2 0.348 95 0.429 114 0.500 131 0.580 150 0.651 170 0.722