need help on a math probelm

- anonymous

need help on a math probelm

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- anonymous

##### 1 Attachment

- anonymous

What do you think it is?

- anonymous

c or d

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## More answers

- xapproachesinfinity

look at the table what do you see

- xapproachesinfinity

describe what do you see

- anonymous

each number is *3

- xapproachesinfinity

look clearly at the months and the heights do you see any kind of pattern

- xapproachesinfinity

oh good eyes

- xapproachesinfinity

so we are multiplying here by 3

- anonymous

ya

- xapproachesinfinity

so for the 12 moth what are we gonna get

- anonymous

um not sure

- xapproachesinfinity

well you just said we are multiplying by 3

- anonymous

oh

- anonymous

36

- xapproachesinfinity

ok

- anonymous

for the 12th month

- xapproachesinfinity

good! so which answer choices have 36 cm

- anonymous

the correct answer is D

- xapproachesinfinity

ok but what guarantees that?

- xapproachesinfinity

just because you 36 does not guarantee it is correct

- anonymous

becuase we are trying to find the 12th month and 12*3 = 36 and D is the only one with 36

- xapproachesinfinity

what if we had two answer choices that have 36 on them

- xapproachesinfinity

yes in this case you are safe

- anonymous

then i would keep going and keep problem solving

- xapproachesinfinity

but to confuse you i would have put 36 in more than one and you won't be sure anymore

- anonymous

ok

- anonymous

i'm not sure how to work that.

- xapproachesinfinity

you have to find that model through the table

- anonymous

ok can you help me with that?

- xapproachesinfinity

let's take the months as our x (input)
and height as our out put
ok

- anonymous

ok

- xapproachesinfinity

y=3x as you said yourself according to table

- anonymous

ya

- xapproachesinfinity

you give me an x i multiply by 3 to get y the height

- xapproachesinfinity

so the kind of relation we have here is linear (direct relation)

- anonymous

ya

- xapproachesinfinity

now what we do is go to options and see which exactly y=3x

- xapproachesinfinity

in this case we know already it has to be y-9=3(x-3)

- anonymous

ya thats easy to find

- xapproachesinfinity

if you solve that for y you get y=3x-9+9=3x which is the right one

- anonymous

the answer is still D

- xapproachesinfinity

yes

- xapproachesinfinity

i was just teaching how to do more of this problems

- anonymous

thanks so much most people on here just pop in and don't explain much i faned you for sure!

- xapproachesinfinity

sometimes they will confuse yoiu

- anonymous

thanks gonna close this now:)

- xapproachesinfinity

no problem :) i'm pleased to help

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