How do you calculate f(x) for the given domain values $f(x) = 4x + 8$ ; x = 1, 11, 21, 31, 101?

Question

2665 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-08-22T16:14:46

See the example

Picking just one of them as an example:

Given: $" "color(brown)(f(color(blue)(x))=4color(blue)(x)+8)$

$color(brown)(=>f(color(blue)(21))=4(color(blue)(21))+8)$

$=>f(21)=84+8=92$

All you have to do is 'plug' the value in where $x$ is!

How do you calculate f(x) for the given domain values f(x) = 4x + 8f(x) = 4x + 8; x = 1, 11, 21, 31, 101?