University:
High School
Course:
High School Mathematics
Academic year:

2020
Views:

338

Pages:

3
Author:

Damon R

Dilations In your own words, write the meaning of each vocabulary term. Dilation cenfer of dilation scale factor ex ,c, enlargement po;A+- - reduction Core Concepts Dilations A dilation is a transformation in which a figure is enlarged or reduced with respect to a fixed point C called the center of dilation and a scale factor k, which is the ratio of the lengths of the corresponding sides of the image and the preimage. A dilation with center of dilation are true. C and scale factor k maps eve1y point • If P is the center point • If P is not the center point C then P C, then the image pointP' lies on CP Angle measures are preserved. C\ � . .. P so that the following P' = P' The scale facto k is a positive number such that k • in a figure to a point = C CP' CP s � f,,.l,. Q' R' Coordinate Rule for Dilations IfP (x, y) is the preimage of a point, then its image after a dilation centered at the origin 0, 0) with scale Factor k is the point P' (kx, ky) y I I • P'(kx, ky) P(x, y) X