SOLUTION:
Case: Dilation.
Method:
Notice how the transformation (dilation) occurs
J (6, 12) ------------> J' (2, 4)
K (9, 6) -------------> K' (3, 2)
L (12, 9) -------------> L' (4, 3).
You would notice that each value gets divided by a factor of 3.
Hence the scale factor from the triangle to its image is:
S.F = 1/3
Final answer:
1/3