Geometric Dilations

Front

A scale factor of less than one means

Back

That the prime image will be a reduction of the preimage.

Front

The point (8, 12) was dilated from the origin to become point (2, 3). What was the scale factor?

Back

¼

Front

If the origin is the center of this dilation, choose the correct scale factor:

2

,

3

,

1/3

,

1/2

Back

2

Front

Dilate Point B by a scale factor of 1/2, with the origin as the center of the dilation.

Back

(-1.5,1)

Front

Algebraic notation for a dilation from the origin with a scale factor of 3?

Back

(x, y) --> (3x, 3y)

Front

Is this an enlargement or a reduction? What is the scale factor if the origin is the center of dilation?

Back

It's a reduction; the scale factor is 1/2.

Front

Rectangle ABCD is dilated so that A' is located at (3, 6). What could be the dilation rule? Options:

(x, y) --> (2x, 3y)

,

(x, y) --> (2/3 x, 2/3 y)

,

(x, y) --> (3/2 x, 3/2 y)

,

(x, y) --> (x + 2, y + 3)

Back

(x, y) --> (3/2 x, 3/2 y)

Front

A dilation preserves which of the following characteristics?

Congruence

,

Similarity

,

Both

,

None of these

Back

Similarity

Front

Does the image show a dilation centered at the origin? If yes, did the image enlarge, reduce or none of the above...and by what scale factor?

Back

Yes, it is an enlargement with a scale factor of 2

Front

Coordinates of the image of point B (-10,-6) under dilation with center at origin and scale factor k = 1/2?

Back

B' (-5,-3)