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ALGEBRA HELP PLZZZZZZZZZ



Apply this transformation to a square with vertices A(3,-4) B(7,-4) C(3,-8) D(7,-8)

apply this (x,y) ----> (-x,y)


I need to rotate this 180 degrees from the origin How do I do this?  DO I use the corrdinates from the prior answer and move it 180 degrees to a new quadrant? 

PLEASE HELP ME AND SHOW HOW TO DO THIS!! THANK YOU!!!!



User Scorpil
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1 Answer

4 votes
1st transformation:

A'=(-3,-4)\\ B'=(-7,-4)\\ C'=(-3,-8)\\ D'=(-7,-8)

2nd transformation:
When you rotate a point around the origin by 180 degrees, you change both coordinates to opposite values.

A''=(3,4)\\ B''=(7,4)\\ C''=(3,8)\\ D''=(7,8)

User Donald Miner
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9.0k points