Draw the image of each figure under the given transformation. Then describe the transformation in words.

Answer:
The graph compressed vertically by factor 3.
Step-by-step explanation:
From the given figure it is clear that the vertices of triangle DEF are D(1,3), E(3,-3) and F(-3,-3).
The given rule of transformation is
[tex](x,y)\rightarrow (x,\frac{1}{3}y)[/tex]
The vertices after transformation are
[tex]D(1,3)\rightarrow D'(1,1)[/tex]
[tex]E(3,-3)\rightarrow E'(3,-1)[/tex]
[tex]F(-3,-3)\rightarrow F'(-3,-1)[/tex]
The graph of image is shown below.
Therefore the graph compressed vertically by factor 3.