Question

When given the question: find f(g(x)), we plug in f(x) into g(x).
true or false?

Answer 1

phaalsh.. :P

Answer 2

false
it is reverse i.e plug g into f

Answer 3

Why would this be true? (Ask yourself this.)

Answer 4

Let me give you some example;

\(f(x)=2x^2+4\), find \(f(9)\), then you replace x with 9 and solve;
\(f(x)=7x\), find \(f(5)\), replace x with 5 and solve.

Answer 5

Therefore, replace x by whatever is in the parentheses to solve; \(f(g(x))\) would be, replace x by \(g(x)\) and solve for \(f(g(x))\).

Answer 6

it is f[g(x)] which means operate f on g simple!