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2-68.

On grid paper, set up $x$- and $y$-axes for a four quadrant graph. Then draw a triangle with vertices at $(1, 1),$ $(5, 1),$ and $(6, 3)$. Label this triangle T. .

1. Translate (slide) the triangle left $3$ units and down $4$ units. Label this triangle A and list the vertices.

2. Reflect triangle T across the $y$-axis. Label this triangle B and list the vertices.

3. Are triangles T, A, and B congruent (that is, do they have the same shape and size)? Explain.

When you translated or reflected the original triangle, did the size or shape of the original triangle change?

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