Question

If f(x) = x + 4, find f(3)

Answer 1

let x=3

Answer 2

f(3) means every x in the equation is replaced by 3

Answer 3

Functions represent the operations done on a general number. This can be represented by any variable, mostly x.

\(\Large \color{MidnightBlue}{\Rightarrow f(3) = 3 + 4 }\)

In this case.

Answer 4

Think about putting a number in a box, and then getting something out of a box.

Answer 5

functions be crazy