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Mathematics 17 Online
Adigirl29:

Graph a triangle (LMN) and rotate it 180° around the origin to create triangle L′M′N′. Describe the transformation using words. Make sure you refer to the characteristics and the coordinates. Draw a line through points L and L′ and through M and M′. What do you notice about the lines you drew? Do you think you would notice the same characteristics if you drew another line through points N and N′? How do you know? Source StylesFormat

TETSXPREME:

Welcome to questioncove o;

Isolation:

You didn't put a picture or anything, but I can tell you the basics When you rotate something 180 degrees around the origin, just change all the signs ex. (1,2) -> (-1,-2) (3,-1) -> (-3,1)

Adigirl29:

thx

Adigirl29:

it doesn't have a picture

Isolation:

How about the coordinate points you can't flip nothing..... lol

Adigirl29:

nope nothing, that's the question itself

Isolation:

OHH, it says graph 'a' triangle' So just choose 3 random coordinate points that can be made into a triangle

Isolation:

And then write down those coordinate, and then rotate it 180 degrees

Adigirl29:

uh where exactly can I graph it two

Adigirl29:

too*

Isolation:

Just graph it on desmos or something the question just wants description, not the actual thing, so, just graph 3 points on desmos, write them down, and then write down teh coordinates when it rotates 180 degrees

Isolation:

For example, i could do

1 attachment
Isolation:

And then, to rotate it 180 degrees, i flip all the signs and get

1 attachment
Adigirl29:

Isolation:

And then drawing a line, since i'm on desmos, i'll just do a linear equation do you see how they go through the origin

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Adigirl29:

okay so I put these points

Adigirl29:

are they good?

Isolation:

Sure, any points that make a triangle works and so now flip all the signs

Adigirl29:

uh- how do I do dat two

Adigirl29:

twt*

Isolation:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Isolation You didn't put a picture or anything, but I can tell you the basics When you rotate something 180 degrees around the origin, just change all the signs ex. (1,2) -> (-1,-2) (3,-1) -> (-3,1) \(\color{#0cbb34}{\text{End of Quote}}\)

Isolation:

The numbers stay the same, but positive turns negative, negative turns positive

Adigirl29:

ah I see

Adigirl29:

alright I did it

Isolation:

Post the image

Adigirl29:

Adigirl29:

is that right?

Isolation:

yep that's correct

Adigirl29:

alright so the draw the line part, how do I do dat?

Isolation:

Eh, this kind of just looks like how good you are with linear equations xd but since this is only about describing it, just say that each line goes through the two points and also the origin, you can look at my screenshot

Adigirl29:

oh okay let meh finish answering the first question

Adigirl29:

okay how do these answers look

Adigirl29:

1.For me the transformation was almost like flipping the traingle the opposite side, i put the coordinates (-4,5), (-2,1), and (-5,3) to make up the triangle, and in order to rotate it 180 degrees you have to switch the negatives with positives and positives with negatives making it (4,-5), (2,-1), and (5,-3). 2.Each line that i drew goes through the 2 points and also the origin, since when i drew it i can see how the lines pass by it.

Isolation:

yep, that's good

Adigirl29:

awesome! thank you soooo much! ill probably post like 3 more questions if that's okay?

Isolation:

altho the other half, the for point N, the answer is yes

Isolation:

uh, sure lol

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