A translation is a transformation that moves every point in a figure in the same direction by the same amount. The correct option is B.
What is translation?
A translation is a transformation that moves every point in a figure in the same direction by the same amount. It is also a sort of transformation in which each point in a figure is moved the same distance in the same direction resulting in the same figure again.
The triangles on the grid below represent a translation. As it can be seen that the triangle ABC is translated to produce triangles A'B'C'.
Now, it is is observed that the triangles vertices lies in the same line, therefore, it can be said that the triangle ABC is translated vertical to produce triangles A'B'C'
Hence, the translation shown on the graph are vertical translation only.
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