Question

If f(x) = 5x – 3 and g(x) = 4x + 7, what is f(g(x)) ?

Answer 1

\(\Large \color{MidnightBlue}{\Rightarrow f(4x + 7) }\)
\(\Large \color{MidnightBlue}{\Rightarrow 5(4x + 7) - 3 }\)

Answer 2

5(4x+7)-3

Answer 3

Can you do now?

Answer 4

Yes thanx!

Answer 5

The concept of functions is confusing when you come to a statement like this :p

Answer 6

You basically have to think that if you are multiplying a number by 5 and adding three, then you'll multiply g(x) by 5 and add 3.

Answer 7

@ParthKohli : sri dear