Functions #

Basic terminology

If \( f(x) = 2x^3 + 4 \)

Then, \( f(1) = 2(1)^3 + 4 = 6 \)

So, \( f(1) = 6 \) . When input is 1, output is 6.

\( f(10) = 2(10)^3 + 4 = 2004 \) . So, when input is 10, output is 2004.

The operations are what make a function, not the symbols.

Remember, \( f(2 + 3) \not = f(2) + f(3) \) . On the left side, the inputs have been added, and on the right side the outputs have been added.

Interesting questions regarding functions #