Question

For the given functions f and g, find the indicated composition:

Answer 1

Answer:  x

Step-by-step explanation:

  g(x) = 4x + 10     f(x) =$\frac{x - 10}{4}$  

to find g(f(x)), replace "x" in the g(x) equation with what f(x) equals.  Another way of writing g(f(x)) for this problem is: g($\frac{x - 10}{4}$).  

g(f(x)) = 4$(\frac{x - 10}{4})$ + 10

          = x - 10 + 10

          = x