Question

Let f(x) =4 + 5x and g(x) 2x - 1 . Find f(g(x)) and g(f(x))

Answer 1

Answer:

The answer to your question is:

a) 10x - 6

b) 7 - 10x

Step-by-step explanation:

Data

f(x) = 4 + 5x

g(x) = 2x - 1

a) f(g(x)) = 4 + 5(2x -1)

             = 4 + 10x -10

             = 10x - 6

b) g(f(x)) = 2(4 + 5x) - 1

             = 8 - 10x - 1

             = 7 - 10x