Look at!!:
Pre image A(3,4), B(1,5) C(6,6);
If you multiply these coordinates by 3/2, you get its images:
A(3,4) ⇒ A(33/2, 43/2)=(4.5, 6)
B(1,5) ⇒B(1.3/2, 53/2)=(1.5, 7.5)
C(6,6) ⇒C`(63/2, 63/2)=(9,9)
Therefore the scale factor is 3/2.
When the scale factor of a dilation is >1, then we have an enlargement, an expansion.
In this case 3/2=1.5>1
Answer:
The dilation is expansion.
The scale factor is 3/2.
