Dilations

Warm Up 1/28/21

A scale factor of 1/2 reduces a figure.

When the dilation has a scale factor greater than one, the dilation is an enlargement.

When the scale factor of a dilation is less than one, the dilation is a reduction.

If a dilation has the rule
 $(x,y)→(2.5x,2.5y)$  what type of dilation is this?

A polygon is graphed on a coordinate grid with (x,y) representing the location of a certain point on the polygon. The polygon is transformed using the rule (x, y)→(ax, ay). Which statement must be true?

If the triangle ABC is dilated using a scale factor of k=2, what will be the coordinates of A' after the transformation?(Click the picture to zoom in on it)

Click image to enlarge

Click image to enlarge

Click image to enlarge

How well do you understand dilations?