Use a Graphing Calculator to Estimate the Local Maximum and Local

Multiple Choice

Use a graphing calculator to estimate the local maximum and local minimum values of the function to the nearest
hundredth.
-The polynomial $R ( x ) = - 0.021 x ^ { 5 } + 4.133 x ^ { 4 } + 300$ approximates the shark population in a particular area, where x is the number of years from 1985. Use a graphing calculator to describe the shark population from the years
1985 to 2010.

A) The population decreases.
B) The population increases.
C) The population remains stable.