Dilations and Scale Factor Practice

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but maintains its shape, using a scale factor.

Tags

CCSS.8.G.A.3

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a figure during a dilation.

Tags

CCSS.8.G.A.3

Front

If the scale factor is greater than 1, what type of transformation occurs?

Back

Enlargement.

Tags

CCSS.8.G.A.3

Front

If the scale factor is less than 1, what type of transformation occurs?

Back

Reduction.

Tags

CCSS.8.G.A.3

Front

How do you find the image coordinates after dilation?

Back

Multiply the original coordinates by the scale factor.

Tags

CCSS.8.G.A.3

Front

What is the scale factor if point A (8, 12) dilates to point A' (2, 3)?

Back

¼.

Tags

CCSS.8.G.A.3

Front

What is the image of point B (-10, -6) under a dilation with scale factor k = 1/2?

Back

(-5, -3).

Tags

CCSS.8.G.A.3

Front

What does a scale factor of 5 indicate?

Back

Enlargement.

Tags

CCSS.8.G.A.3

Front

What does a scale factor of 3/5 indicate?

Back

Reduction.

Tags

CCSS.8.G.A.3

Front

How do you classify a dilation with a scale factor of 1?

Back

It is neither an enlargement nor a reduction; the figure remains the same size.

Tags

CCSS.8.G.A.3