\"\"

\

Given that image length = 4 units and preimage length = 2 units.

\

Scalar factor = \"\"

\

Substitute image length = 4 units and preimage length = 2 units

\

Scalar factor = \"\"

\

Scalar factor = \"\"                   (Divide)\"\"

\

Since the scalar factor is greater than 1,the dilation is an enlargement.