Question

If `f(x) = -x+12`, what is the value of `f(2)`?

What is `x` and `y`, written as an ordered pair?

Answer 1

`f(2) = 10` or (2, 10)

Explanation:

To solve this problem we must substitute `color(red)(2)` for each occurrence of `color(red)(x)` in the function.

`f(color(red)(x)) = -color(red)(x) + 12` becomes:

`f(color(red)(2)) = -color(red)(2) + 12`

`f(color(red)(2)) = 10`