dilations

Front

What does the scale factor do in a dilation?

Back

Tells you how much the image grows or shrinks.

Front

What is the scale factor for a dilation that reduces a shape to half its size?

Back

k = 1/2.

Front

If a triangle has vertices A (1, 2), B (3, 4), and C (5, 6), what are the coordinates of A' after a dilation by a scale factor of 3?

Back

A' (3, 6).

Front

If the scale factor is greater than 1, the dilation is...

Back

an enlargement.

Front

Dilation changes a shape's __________?

Back

Size.

Front

What is the scale factor for a dilation that enlarges a shape to twice its size?

Back

k = 2.

Front

How do you find the coordinates of a point after dilation?

Back

Multiply the original coordinates by the scale factor.

Front

What happens to a shape when the scale factor is equal to 1?

Back

The shape remains the same size.

Front

If a shape is dilated by a scale factor of 0.5, what type of transformation occurs?

Back

A reduction.

Front

What is the center of dilation?

Back

The fixed point in the plane about which all points are expanded or contracted.