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

Question

7167 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-05-01T22:59:00

See the solution process below:

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

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

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

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

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