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Mathematics 20 Online
OpenStudy (anonymous):

SEE ATTACHMENT. Using the graph shown, answer this question: What is the scale factor used to dilate the figure?

OpenStudy (anonymous):

OpenStudy (anonymous):

ARI AND KITT LET ME POST THE QUESTION

OpenStudy (anonymous):

ONE SEC

OpenStudy (anonymous):

Using the graph shown, answer this question: What is the scale factor used to dilate the figure?

OpenStudy (aripotta):

count the length of the sides for each rectangle

OpenStudy (anonymous):

Okay. Let me count.

OpenStudy (anonymous):

just one side?

OpenStudy (aripotta):

yea, just make sure they're corresponding. like, the long side of the big one and long side of the small one

OpenStudy (anonymous):

Okay.

OpenStudy (anonymous):

let ari take over, I got nothing lol.

OpenStudy (anonymous):

Will it be by 2's or ones?

OpenStudy (aripotta):

it's by 1's

OpenStudy (anonymous):

Okie, Kitt. I like ur picture too

OpenStudy (aripotta):

always assume by 1's if it's not labeled

OpenStudy (anonymous):

Okie, Ari

OpenStudy (anonymous):

Can it be CB an CB'?

OpenStudy (anonymous):

(' Means the dilation or second version of a figure.)

OpenStudy (aripotta):

yea count them. then put cb/cb' and figure out the scale factor

OpenStudy (anonymous):

Ok.

OpenStudy (anonymous):

\[\frac{ CB }{ CB' } = \frac{ 9 }{ 2 }\]

OpenStudy (anonymous):

?

OpenStudy (anonymous):

So is the scale factor 4.5?

OpenStudy (anonymous):

(I divided 9/2)

OpenStudy (aripotta):

9/3

OpenStudy (anonymous):

O

OpenStudy (anonymous):

Okiee.

OpenStudy (aripotta):

which would give us scale factor of 3

OpenStudy (anonymous):

Ohhh. Okay. So answer = 3?

OpenStudy (aripotta):

wait no. put cb'/cb which would be 1/3

OpenStudy (aripotta):

1/3 is your answer, sorry

OpenStudy (anonymous):

OH. OK. WHY WAS THE FIRST ONE WRONG?

OpenStudy (aripotta):

because if we said the scale factor was 3, then cb' would be 3x the size of cb. but it's not. it's 1/3 the size.

OpenStudy (anonymous):

Oh. Okay. Thanks!

OpenStudy (anonymous):

[since its smaller it can't b 3 times the size right?]

OpenStudy (anonymous):

TNX U

OpenStudy (aripotta):

lol yes

OpenStudy (anonymous):

:)

OpenStudy (aripotta):

no problemo

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