Ec1happieMingle Ec1happieMingle
  • 03-05-2017
  • Mathematics
contestada

The function f is defined by f(x)=2x^2-4.
Find f(-x)

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altavistard
altavistard altavistard
  • 07-05-2017
First of all, since all powers of x in this function are even, the entire function is even.  Thus, using -x as input doesn't change the function.  Thus, f(-x)=2x^2-4.

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