Question

given the function f(x)=|x+2|, find each of the following.
f(9),f(-1),f(0)

Answer 1

So, what about the first one:
f(9) = |9 + 2| = .... what is this equal to?

Answer 2

f(9) = |9 + 2|
= | 11 |
= .... what?

Answer 3

11?

Answer 4

yes.

Answer 5

For the record, what is the value of |-11| ?

Answer 6

-11?

Answer 7

No. If x < 0, then |x| = -x

For example
|-1| = 1
|-2| = 2
|-100| = 100

Hence |-11| = ...?

Answer 8

11

Answer 9

Yes. Good. Now what is f(-1)?

Answer 10

1?

Answer 11

Yes. And f(0)?

Answer 12

2

Answer 13

Yep. For fun what is f(-2)?

Answer 14

2, thank you!!!

Answer 15

No. f(-2) is not 2.

Answer 16

0

Answer 17

Yes, that's it. Last one. What is f(-11)?

Answer 18

9

Answer 19

That's it, you've got it.

Answer 20

bye