Which types of dilation are the given scale factors?
Select Expansion or Contraction to correctly describe the type of dilation for each given scale factor.
Scale Factor (Expansion) or (Contraction)
−5/4
3/8
−1.2
0.5
If S is the scale factor, then if
l S l > 1 we have an expansion else if
l S l < 1 we have a contraction
l -5/4 l = 5/4 > 1 expansion
l 3/8 l = 3/8 < 1 contraction
l -1/2 l = 1/2 < 1 contraction
l 0.5 l = 0.5 < 1 contraction