Question

What is the difference between f(9) and f(x)=9

Answer 1

Explanation:

The f(9) means that the value of x would be 9 in any given equations or functions.

For example:

`f(x) = 2x^(2) + 5\\f(9) = 2(9)^(2) + 5\\f(9) = 2(81) + 5\\f(9) = 162 + 5\\f(9) = 167`

On the other hand, f(x) = 9 means that the value of a certain function is simply equal to 9.