Triangle ABC has vertices with coordinates A(2,3), B(7,8), and C(-4,6). The triangle is reflected about line L. The image points are A(2,-5), B'(7,-10), and C'(-4,-8). What is the equation of line L?

 Jun 18, 2020

Graphing this, we find that Triangle ABC and its reflection are reflected horizontally. 


The line of reflection must be the midpoint of A and A'. The x point of A is 3 and the x point of A' is -5. The midpoint must be -1 then. The equation of Line L should be y= -1.


Correct me if I'm wrong.

 Jun 18, 2020

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