Question

Letf, g: Z→ Z defined by f(x) = 2x + 1 and g(x) = 3x + 4
Then (f og)(x) is given by​

Answer 1

Answer:

$given \\ f(x) = 2x + 1 \\ g(x) = 3x + 4 \\ (fog)(x) = f( {g(x)} \\ = \: \: f(3x + 4) = 2(3x + 4) + 1 \\ = 6x + 8 + 1 \\ = 6x + 9$