Nonlinear Functions

SAT Math· difficulty 5/5

If ff is even and gg is odd, what type of function is h(x)=f(x)g(x)h(x) = f(x) \cdot g(x)?

  • A

    Even

  • B

    Cannot be determined

  • C

    Odd

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  • D

    Neither

Explanation

h(x)=f(x)g(x)=f(x)(g(x))=f(x)g(x)=h(x)h(-x) = f(-x) g(-x) = f(x)(-g(x)) = -f(x)g(x) = -h(x). So hh is odd.

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