Question

Which is the BEST definition of dilation?

A. a transformation that either reduces or enlarges an object in the coordinate plane

B. a transformation that flips an object in the coordinate plane

C. a transformation that spins an object in the coordinate plane

D. a transformation that either slides or shifts an object in the coordinate plane

Answer 1

A. a transformation that either reduces or enlarges an object in the coordinate plane

Explanation:

The definition of dilation is the size of an object/shape by increasing/ decreasing its dimensions by scaling factors.

Dialtions do not flip and object, spin it, or slide it. It's dimensions are either enlarged, or reduced. Therefore, option A makes the most sense.