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Mathematics 17 Online
OpenStudy (anonymous):

Rectangle DEFG ~ rectangle DꞌꞌEꞌꞌFꞌꞌGꞌꞌ. Which two transformations were performed on rectangle DEFG to produce rectangle DꞌꞌEꞌꞌFꞌꞌGꞌꞌ Choose exactly two answers that are correct. A. Rectangle DEFG was reflected across the x-axis to produce rectangle DꞌEꞌFꞌGꞌ. B. Rectangle DEFG was dilated by a scale factor of to produce rectangle DꞌEꞌFꞌGꞌ. C. Rectangle DꞌEꞌFꞌGꞌ was dilated by a scale factor of 2 to produce rectangle DꞌꞌEꞌꞌFꞌꞌGꞌꞌ. D. Rectangle DꞌEꞌFꞌGꞌ was rotated 90° counterclockwise to produce rectangle DꞌꞌEꞌꞌFꞌꞌGꞌꞌ.

Mehek (mehek14):

ok so there was a dilation because the new image is smaller than the pre-image

Mehek (mehek14):

can you tell me what the scale factor is for B? it doesn't say

OpenStudy (anonymous):

oh woops. 1/2

Mehek (mehek14):

ok so let's see if the SF is 2 or 1/2

OpenStudy (anonymous):

ok

Mehek (mehek14):

G(-2,-2) G''(-1,-1) so is it 1/2 or 2

OpenStudy (anonymous):

uh, i'm not sure

OpenStudy (anonymous):

hmmm well lets slowly think about it

OpenStudy (anonymous):

Lets not break our minds lets make this a simple and broken down as possible i mean its pictures lets not get into the crazy albert einsten part of math >_>

Mehek (mehek14):

idk how G(-2,-2) became G''(1,-1) you would need a negative SF to turn -2 into 1

OpenStudy (anonymous):

mhm

OpenStudy (anonymous):

wait so is it 2

OpenStudy (anonymous):

?

Mehek (mehek14):

ok from -2 to 1, the SF has to be -2 which there is no answer choice for -2 to -1, the SF is 2

OpenStudy (anonymous):

okay

Mehek (mehek14):

I feel like your answer choices are wrong

OpenStudy (anonymous):

O-o

OpenStudy (anonymous):

P.S. Well you can clearly get rid of A and D if that helps you guys

OpenStudy (anonymous):

so it's b and c?

OpenStudy (anonymous):

Marie u took my words XD

OpenStudy (anonymous):

I was about to say that >_>

OpenStudy (anonymous):

i mean not b

OpenStudy (anonymous):

i need 2 answers though

OpenStudy (anonymous):

What do u mean two answers?

OpenStudy (anonymous):

it says "Choose exactly two answers that are correct."

OpenStudy (anonymous):

O-o

OpenStudy (anonymous):

well then it must be B and C since its not A and D according to Marie

OpenStudy (anonymous):

but it's not b.

OpenStudy (anonymous):

hmmm......

OpenStudy (anonymous):

does D actually sound good? because it was rotated

OpenStudy (anonymous):

yeah i was gonna sugest that earlier but then Marie came and said other wise

OpenStudy (anonymous):

Lol I'm looking over it again right now......sorry DarkMoonZ if I confused you

OpenStudy (anonymous):

*suggest

OpenStudy (anonymous):

nah man its ok i was born confused :P

OpenStudy (anonymous):

so is it c and d?

OpenStudy (anonymous):

Yup they seem to make the most sense out of all of them :3

OpenStudy (anonymous):

That's what I think....I agree :)

OpenStudy (anonymous):

ok, i'll let you know if that's right :D

OpenStudy (anonymous):

although i am one not to agree with sense >_>

OpenStudy (anonymous):

Ok :3

OpenStudy (anonymous):

oh can you guys help with one more?

OpenStudy (anonymous):

Sure

OpenStudy (anonymous):

I hope you get it right....and sure I'll be willing to

OpenStudy (anonymous):

ok Square ABCD has coordinates A (−10, 5), B (10, 5), C (10, 0), and D (−10, 0). Square AꞌBꞌCꞌDꞌ has coordinates Aꞌ (−10, −5), Bꞌ (10, −5), Cꞌ (10, 0), and Dꞌ (−10, 0). Square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ has coordinates Aꞌꞌ (−2, −1), Bꞌꞌ (2, −1), Cꞌꞌ (2, 0), and Dꞌꞌ (−2, 0). Which transformations describe why squares ABCD and AꞌꞌBꞌꞌCꞌꞌDꞌꞌ are similar?

OpenStudy (anonymous):

And are you doing GCA also?

OpenStudy (anonymous):

???

OpenStudy (anonymous):

GCA?

OpenStudy (anonymous):

sorry gtg pm me if u get it right ok

OpenStudy (anonymous):

oh ok

OpenStudy (anonymous):

I can't see your problem

OpenStudy (anonymous):

here i'll type it again, hang on

OpenStudy (anonymous):

Square ABCD has coordinates A (−10, 5), B (10, 5), C (10, 0), and D (−10, 0). Square AꞌBꞌCꞌDꞌ has coordinates Aꞌ (−10, −5), Bꞌ (10, −5), Cꞌ (10, 0), and Dꞌ (−10, 0). Square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ has coordinates Aꞌꞌ (−2, −1), Bꞌꞌ (2, −1), Cꞌꞌ (2, 0), and Dꞌꞌ (−2, 0) Which transformations describe why squares ABCD and AꞌꞌBꞌꞌCꞌꞌDꞌꞌ are similar? A. Square ABCD was reflected across the x-axis and then dilated by a scale factor of 1/5 to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ. B. Square ABCD was dilated by a scale factor of 1/5 and then rotated 90° counterclockwise to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ. C. Square ABCD was reflected across the y-axis and then dilated by a scale factor of 5 to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ. D. Square ABCD was dilated by a scale factor of 5 and then rotated 90° counterclockwise to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ.

OpenStudy (anonymous):

Is there a picture or no?

OpenStudy (anonymous):

nope

OpenStudy (anonymous):

Lol Okay. I'll graph it for you......give me like two minutes

OpenStudy (anonymous):

Aish sorry...I have a test due that my mother wants me to finish. be back later

OpenStudy (anonymous):

okay, i'll let you know what the answer was

OpenStudy (anonymous):

it was A

OpenStudy (anonymous):

and the other one was b and d :(

OpenStudy (anonymous):

ha yhea B. AND .D to who ever saerches this (:

OpenStudy (anonymous):

Thanks for claryfying once again! @crumby

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