Question

do,k = (2, 4) ( 8, 16) the dilation is an expansion. true false

Answer 1

A dilation is a transformation that changes the size of a figure.
If the scale factor is k = 4:
( 2 , 4 ) → ( 2 · 4,  4 · 4 ) = ( 8, 16 )
The dilatation is an expansion when | k | > 1    ( 4 > 1 )
Answer: true.