Posted by **amy** on Thursday, May 31, 2012 at 2:39pm.

Triangle XYZ has vertices X(- 1, 1), Y(- 3, 1), and Z( -2, 5). Reflect triangle XYZ in the y-axis. Find the vertices of the image

- pre algebra -
**MathMate**, Thursday, May 31, 2012 at 3:59pm
Reflection about the y-axis has the transformation defined as:

T(x,y)→(-x,y).

For example, the point (5,4) reflected about the y-axis becomes (-5,4), according to the rule.

Apply the rule to all three vertices (in the same order) of the given triangle to get the image.

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