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Stretch △DEF with points D(−2, 1), E(−1, −1), and F(−2, −2) horizontally and vertically by a factor of 4.

Stretching △DEF horizontally and vertically by a factor of 4 results in the transformed points
D'____
E' ____
F' ____

Respuesta :

For this case we have to apply the following transformation:
 (x, y) -------> (4x, 4y) --------> (x ', y')
 Applying the transformation to the vertices we have:
 (-2, 1) -------> (4 (-2), 4 (1)) --------> (-8, 4)
 (-1, -1) -------> (4 (-1), 4 (-1)) --------> (-4, -4)
 (-2, -2) -------> (4 (-2), 4 (-2)) --------> (-8, -8)
 Answer:
 Stretching △DEF horizontally and vertically by a factor of 4 results in the transformed points 
 D '(-8, 4)
 
E '(-4, -4)
 
F '(-8, -8)