Answers

2014-08-12T20:27:46+08:00
If you're asking for (f • g)(x), which is the product: (f • g)(x) = (2x + 1)(x - 4) = 2x^2 - 8x + x - 4 = 2x^2 - 7x - 4. If you're asking for (f ○ g)(x), which is the composite of the 2 functions: (f ○ g)(x) = 2(x - 4) + 1 = 2x - 8 + 1 = 2x - 7.
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2014-08-13T01:48:33+08:00