Let f and g be the function from the set of integers to itself, defined by f(x) = 2x + 1 and g(x) = 3x + 4. Then the composition of f and g is ____________(a) 6x + 9(b) 6x + 7(c) 6x + 6(d) 6x + 8This question was posed to me during an online interview.Query is from Functions in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

Let f and g be the function from the set of integers to itself, define

1.	Let f and g be the function from the set of integers to itself, defined by f(x) = 2x + 1 and g(x) = 3x + 4. Then the composition of f and g is ____________(a) 6x + 9(b) 6x + 7(c) 6x + 6(d) 6x + 8This question was posed to me during an online interview.Query is from Functions in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics
Answer» The correct ANSWER is (a) 6x + 9 Easy explanation: The composition of F and g is given by f(g(x)) which is equal to 2(3X + 4) + 1.

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