+0  
 
-1
826
1
avatar+1015 

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

AngelRay  Nov 8, 2017
 #1
avatar+87635 
+1

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

 

 

cool cool  cool

CPhill  Nov 8, 2017

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