- Phebe

ALLITLE HELP HERE

- katieb

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- Phebe

im going to post attachment

- Phebe

##### 1 Attachment

- Phebe

there it is ^^^^

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## More answers

- anonymous

what do you think the pattern is?

- Phebe

for which question
A. B. or C.

- anonymous

for the table. you need the pattern to do them all.

- Phebe

well i think the pattern is going by 4
right?

- anonymous

no. It started at 1, then added 2, then added 4, then added 8. What would be the next number added?

- Phebe

i think 12

- anonymous

Each line is adding 2 times the last number added, so when x = 5
y = 1 + 2 + 4 + 8 + 16

- anonymous

because 2*8 = 16

- Phebe

OMG!!
THATS TRUEE
I WAS ADDING THE WHOLE TIME
THAS Y I GOT IT WRONG

- Phebe

THANK YOU!!

- anonymous

you're welcome. you got if from here?

- Phebe

Yep i do
Well
Can you help me with the B part?

- anonymous

ok. the first thing you want to do is turn those sums into numbers like this
|dw:1434049238139:dw|

- Phebe

ok

- anonymous

from there if you know your exponents you should see the pattern.
|dw:1434049509172:dw|
Your y-values are 1 less than 2^x

- Phebe

OH yea truee

- Phebe

thanks!

- anonymous

you're welcome

- Phebe

Do you mind helping me with C?

- Phebe

- anonymous

ok. how would you write the equation from the pattern we found in b?

- Phebe

im not shure

- anonymous

We have in the third column and expression for x. The second column is y. What's the relationship between numbers in the 2nd and 3rd columns?

- Phebe

i actually dont see a relatipnship between them at all

- anonymous

subtract the numbers in the 3rd from those in the 2nd and tell me what you get?

- Phebe

OK

- Phebe

2-1=1
3-4=1
7-8=1
15-16=1

- anonymous

those should be -1.

- Phebe

ok

- anonymous

so if you subtract 1 from 2^x you get y

- Phebe

Yes

- Phebe

so was that the answer?

- Phebe

????????????????????????

- anonymous

yes

- Phebe

OH WELL THANK YOU!!!

- anonymous

yw

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