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Basic differentiation challenge

Problem

Consider the functions f and g with the graphs shown below.
If F(x)=3f(x)2g(x), what is the value of F(8) ?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
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