Dilations and scale factors

Front

What is the scale factor in the algebraic representation
(x,y) to (2x,2y)?

Back

k=2

Front

What is the scale factor from the small shape to the big shape?

Back

2

Front

If the scale factor is less than one, the new figure will be

Back

a reduction

Front

If the scale factor is greater than one, the new figure will be

Back

an enlargement

Front

Scale factor from ΔDEF to ΔABC?

Back

2

Front

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

Back

¼

Front

Which is an example of an enlargement? Options: k = 1/2, k = 1, 2:3, 2.5

Back

2.5

Front

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

Back

¼

Front

Dilations (in mathematical terms)

Back

to make larger or smaller

Front

Algebraic notation for scale factor 1/2: (x, y) goes to? Options: (x, y) goes to (2x, 2y), (x, y) goes to (1/2x, 1/2y), (x, y) goes to (-2x, -2y), (x, y) goes to (2x, 1/2y)

Back

(x, y) goes to (1/2x, 1/2y)