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 + 8
This 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