What is the least number of transformations performed to create similar rectangle k' from rectangle k?
a. 1; rotation about the origin
b. 2; rotation about the origin, dilation
c. 3; rotation about the origin, translation, dilation
d. 4; reflection across y-axis, dilation, translation, rotation about origin
(not b.)

C.3; rotation about the origin, translation, dilation

Step-by-step explanation:

The first obvious step is to rotate it 270° counterclockwise [90° clockwise], next you translate it, then you dilate [long and wide].

I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.

the formula of a midpoint between a abd b: