Question

Find k(8) for the function k(n) = 0.007n.

A. 0.0078
B. 0.056
C. 0.56
D. 8.007

Is it B?

Answer 1

Yeah, it's B.

Answer 2

Ok, thanks. :)
Can you check 2 more?

Answer 3

Sure thing

Answer 4

Actually, just one:

Find w(7) for the function w(x) = 5x + 2.

A.59
B. 45
C. 37
D. 13

C?

Answer 5

Yeah. All you do is replace the number with the variable. You've got it right.

Answer 6

Alright, thanks! :)

Answer 7

No problem.

Answer 8

Merry x-mas. Have a good day!

Answer 9

CHRISTmas!!

Answer 10

how many times i gotta tell you :)

Answer 11

xmas!

Answer 12

What is the value of the expression when a = –6 and b = 5? (a+4b)^2 + 2a^2

A.–1061
B. 124
C. 268
D. –311

Every time I solve this, I get a different answer and none of those answers are from the above. Here Is how I solved it:

-6 + (4*5) = 14^2 = 196
2*5 = 10.. 10^2 = 100
196 + 100 = 296
That's what I got.. correct?

Answer 13

@jigglypuff314

Answer 14

Hi Emily! :D Merry x-mas

Answer 15

Hello to you too :)
and your mistake was in the 2a^2 not 2a

Answer 16

* not (2a)^2

Answer 17

Oh.. hold on

Answer 18

So a^2 = 5^2 = 25*2 = 50?

Answer 19

a = -6 ?

Answer 20

... my bad.. :O

Answer 21

a^2 = -6^2 = 36*2 = 72?

Answer 22

yep :)
then 196 + 72 =

Answer 23

C. 268.
Wow.. sorry. I didn't notice :P

Answer 24

you got it :) <3
happy holidays! :P

Answer 25

Thanks! :)
And to you too! (btw, I don't celebrate x-mas, I just say it to people because some do :P)

Answer 26

yeah, not everyone is christian :P which is why I say happy holidays :)

Answer 27

Yep! Hmm.. Don't know why I don't say that.. Happy holidays! :D

Answer 28

(6-4)^4 a when a = 5.
80?

Answer 29

@jigglypuff314

Answer 30

yup :)

Answer 31

Ok, thank you! :)

Answer 32

you're welcome :)

Answer 33

I'm gonna go now.. Thanks again! :) (for math and you know what!) Have a good day, bye! ♥

Answer 34

bye :) happy holidays! :) <3

Answer 35

You too! =3 See you soon!

Answer 36

If f(x) = |x + 8|, find f(–11).

A. –3
B. 3
C. –19
D. 19

C?

Answer 37

@jigglypuff314

Answer 38

not quite :)
| (-11) + 8 | =

so first what is -11 + 8 = ?

Answer 39

-3, so its A? I thought it was that at first..

Answer 40

then absolute value the -3

Answer 41

But with | | Should be 3?

Answer 42

yep :)

Answer 43

Thanks :) I have

Answer 44

oops. I have 4 more*

Answer 45

ok :)

Answer 46

ta-da!!!

Answer 47

If f(x) = |x – 4| + 5, find f(1).

A. 10
B. 2
C. 0
D. 8

B?

Answer 48

OMG!! :O That is soooo cute!! =D

Answer 49

Wow.. you are amazing.. :'D

Answer 50

you're welcome :) I emailed the file to you :P

f(1) = | (1) – 4| + 5
| -3 | + 5
3 + 5

Answer 51

Oh.. then its 8?

Answer 52

yep :)

Answer 53

Sorry, I didn't check my email, hold on

Answer 54

Sorry.. I got mixed up.. :/

Answer 55

If f(x) = 9 – 2|x + 2|, find f(–7).

A. –1
B. –15
C. 1
D. 19

9 – 2|x + 2| should there be multiplication here?
^
|

Answer 56

yep, that's multiplication there :)

Answer 57

Ok, give me a min :)

Answer 58

Should the equation be like this?:

9-2* | -7+2 |
9-2 = 7
|7 + 2 | = 9

Answer 59

Then 7*9? :/

Answer 60

umm...

9 - 2 | (-7) + 2 |
9 - 2 | - 5 |
9 - 2 * (5)

Answer 61

So.... 9 - 2 = 7 * 5?

Answer 62

not equalling involved?

9 - 2 * 5
9 - 10
-1

Answer 63

Wait a min.. you did 2*5 first? I see....

Answer 64

order of operations PEMDAS

Answer 65

Right, I get it now!

Answer 66

Ugh.. now the graphs -.- I hate graphs! I'm soo bad at them >,<

Answer 67

lol I'll help :)

Answer 68

Thanks! your a life saver! :3

Answer 69

Identify the graph of f(x) = 2|x + 3|.

A. http://static.k12.com/calms_media/media/330000_330500/330020/1/374a4c4ca0cc3829ab7548e16e47da2adc2c39af/MS_ALG_S2_01_08_quiz_Q4b_question.gif

B. http://static.k12.com/calms_media/media/330000_330500/330022/1/94c59fa370d9a0b4d11ac6a9c17b99b5a370831f/MS_ALG_S2_01_08_quiz_Q4d_question.gif

C. http://static.k12.com/calms_media/media/330000_330500/330021/1/2acd7269b43f99912cbf0199a44f1b1cef85b5fd/MS_ALG_S2_01_08_quiz_Q4c_question.gif

D. http://static.k12.com/calms_media/media/330000_330500/330019/1/180a3841bdca9324e56b3bc1b4561a5631c190bb/MS_ALG_S2_01_08_quiz_Q4a_question.gif

Answer 70

no negatives so it's not upsidedown
2|x + 3|
^ so left 3

Answer 71

D

Answer 72

Oh wait, its not!

Answer 73

A

Answer 74

yep! :)

Answer 75

Yay! =D last one!

Answer 76

Write the equation for the graphed function.

http://static.k12.com/calms_media/media/1346000_1346500/1346467/2/670b4d1ed1c240cf5b725290b09d1cd0ea801892/HS_A1G2_S2_116163_Edited.jpg

A. f(x) = |x – 3|
B. f(x) = |x + 3|
C. f(x) = |x| – 3
D. f(x) = |x| + 3

Answer 77

absolute value form: y = m|x - h|+k
when vertex is (h, k)
so when vertex is (-3, 0)
h = -3
y = |x - (-3)|
= |x + 3|

Answer 78

So the answer is positive, I knew that! :) B

Answer 79

yep :)

Answer 80

Thanks a lot! :) I gtg now

Answer 81

k, see ya later :)

Answer 82

See ya! btw, I'm having soo much fun in Animal jam =D

Answer 83

glad I could help :)

Answer 84

Thanks! :) bye bye!