1. Graph the function f(x)= 2x' –0.2x* – 8x on a calculator or using an app or Desmos. (a) Adjust the window settings or zoom until you have a good view of the important aspects of the graph. Sketch the graph below, and indicate the viewing window (x - and y -values) used in the graph. (b) List the local maximum values of the function, accurate to two decimal places. (c) List the intervals on which f is increasing. Use x-values accurate to two decimal places.

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