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Reflect a triangle over y=-x

 

The points are A(1,6)   B(3,1)    C(7,2)

 

At this point I get lost because we have to use algebra to figure out its new points on its reflection. Please help me figure out the equations and new points.

 Mar 27, 2018
 #1
avatar+228 
+10

A reflection across y = -x is basically across both axis. So, just change the sign for all of the points.

 

This site really helped me do this:

https://www.desmos.com/calculator

 Dec 10, 2018

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