1.4 Dilations

Which transformations do you like the most so far?

A scale factor of 1/2 reduces a figure.

The "image" is the shape before the dilation.

The _________ is the ratio of a length of the new figure to the corresponding length on the original 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.

When the scale factor is negative, what happens to the figure?

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 enlarge it)

A(1,2) is a point on a triangle. If the triangle is dilated by a scale factor of k =4, what is the coordinate of A'?

What is the image of K(6, 8) after a dilation of k = 1/2 ?

What is the image of D (-6, 4) after a dilation of k = 3 ?

How do you feel about dilations?