The ultraviolet index (UVI) is issued by the National Weather Service as a forecast of the amount of ultraviolet radiation expected to reach Earth around noon on a given day. The data show how much exposure to the sun people can take before risking sunburn.

1. Plot $m\text{,}$ the minutes to burn, against $u\text{,}$ the UVI, to obtain two graphs, one for people who are more sensitive to sunburn, and another for people less sensitive to sunburn. Which of the basic functions do your graphs most resemble?
   $y= x^2$
   $y= x^3$
   $y= \sqrt{x}$
   $y= \sqrt[3]{x}$
   $y= \frac{1}{x}$
   $y= \frac{1}{x^2}$
   $y= x$
   $y= \left| x\right|$
2. For each graph, find a value of $k$ so that $m = k f(u)$ fits the data.
   More sensitive: $k=$
   Less sensitive: $k=$