M8 - Unit 6 Transformations - Dilations

A scale factor of 1/2 reduces a figure.

• True

• False

The "image" is the shape before the dilation.

• True

• False

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

• reduction

• enlargement

• scale factor

• center of dilation

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

• True

• False

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

• True

• False

What is the scale factor from the small fry to the large fry?

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'(1.5, -1.5)

• A' (-6, 6)

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'?

• A' (0.25, 0.5)

• A' (-4, -8)

• A' (4, 8)

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

• K' (4, 3)

• K' (12, 16)

• K' (3, 4)