Question

18. Two functions are defined as f(x)=2x-1 and

g(x)=x² +1. Which of the following expressions
represents f(g(x)) ?

Answer 1

The expression f(g(x)) would represent applying the function g to the input x, and then applying the function f to the result of g(x). Mathematically, this can be written as f(g(x)) = f(x^2 + 1) = 2(x^2 + 1) - 1.

Answer 2

The expression f(g(x)) would represent applying the function g to the input x, and then applying the function f to the result of g(x). Mathematically, this can be written as f(g(x)) = f(x^2 + 1) = 2(x^2 + 1) - 1.