Transformation was discovered in Streptococcus pneumoniae in 1928 by Frederick Griffith; in 1944, Oswald T. Avery, Colin M. MacLeod, and Maclyn McCarty demonstrated that the “transforming principle” was DNA. Both results are milestones in the elucidation of the molecular nature of genes.

Is the original of the transformation?

A transformation can be a translation, reflection, or rotation. A transformation is a change in the position, size, or shape of a geometric figure. The given figure is called the preimage (original) and the resulting figure is called the new image.

Why do we study transformations?

Now, the way transformations are taught gives students the ability to manipulate figures in the plane freely, which sets the foundation for other areas of study, such as the verification of perpendicular segments, the derivation of the equation of a circle, and perhaps most notably, congruence and similarity.