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Mathematics 7 Online
OpenStudy (anonymous):

the hexagon gikmpr and triangle fjn are regular. the dashed line segments form 30 degree angles what is the image of OQ after a 180 degree rotation?

OpenStudy (anonymous):

P(4,1) Q(2,-8) R(-8,-1)

OpenStudy (anonymous):

@ajamjute are you sure because y axis is -x,y ???so i just did (4,-1 ) (2,8) and (-8,1) but idk :(

OpenStudy (anonymous):

U hv reflected the triangle across the origin

OpenStudy (anonymous):

You need to multiply each of the x axis by -1

OpenStudy (anonymous):

u hv? @simpleton i did that though but what about the y ooh so its multiplied by 1 which just leaves it!

OpenStudy (anonymous):

i mean y axis

OpenStudy (anonymous):

Xactly... keep the sign of the y co-ordinate the same n change the sign of the x co-ordinate :)

OpenStudy (anonymous):

P(–4, 1) Q(–2, –8) R(8, –1) -1 8 1

OpenStudy (anonymous):

Wait... Is it standardised dat the x coordinate comes first n den the y coordinate... ??

OpenStudy (anonymous):

As in (x,y) ??

OpenStudy (anonymous):

The x stays the same and th y is multiplied by -1

OpenStudy (anonymous):

@simpleton she is reflecting across the y axis... Dont u thing the sign of the x coordinate wud change...

OpenStudy (anonymous):

Jus imagine in virtually n wud get the answer...

OpenStudy (anonymous):

okay that was my original answer but now I'm so confused from all of this

OpenStudy (anonymous):

Trust m... I know m correct

OpenStudy (anonymous):

okay so it is 4,1 2,-8 and 8,-1 right because you multiply x by -1 and y stays the same

OpenStudy (anonymous):

Yup :)

OpenStudy (anonymous):

My bad, ajamjute is right. i thought it said across the x axis

OpenStudy (anonymous):

-8,-1

OpenStudy (anonymous):

sorry -8 okay thank you omg that was very confusing! haha its okay(: i have some other question too can you help?

OpenStudy (anonymous):

Sure way

OpenStudy (anonymous):

ok from what you showed me this is the correct reflection image right?

OpenStudy (anonymous):

I didnt get u... In this diag. I am seeing a triiangle reflected across he x axis...

OpenStudy (anonymous):

across y axis so that would be -x,y still

OpenStudy (anonymous):

so its wrong? i got -1,-1 and it is 1,-1 ugh crap so it another one let me do it again

OpenStudy (anonymous):

Tell m the question...

OpenStudy (anonymous):

its this one I'm sure its asking which triangle set is reflected across y axis

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