Question

How do you find `w(a+4)` given `w(a)=a+3`?

Answer 1

See the solution process below:

Explanation:

To solve this problem substitute `color(red)(a + 4)` for each occurrence of `color(red)(a)` in the function `w(a)`

`w(color(red)(a)) = color(red)(a) + 3` becomes:

`w(color(red)(a + 4)) = color(red)(a + 4) + 3`

`w(color(red)(a + 4)) = a + 7`