Dilation

Front

What is Dilation?

Back

Dilation means to enlarge or reduce.

Tags

CCSS.8.G.A.3

Front

What is the effect of a scale factor greater than 1 in dilation?

Back

The image will be larger than the pre-image.

Tags

CCSS.8.G.A.3

Front

What is the effect of a scale factor less than 1 in dilation?

Back

The image will be a reduction of the pre-image.

Tags

CCSS.8.G.A.3

Front

What is the scale factor (SF) if the image is reduced to 0.8 of the original?

Back

SF = 0.8, which indicates a reduction.

Tags

CCSS.7.G.A.1

Front

If a point (x, y) is dilated by a scale factor of k, what is the new coordinate?

Back

The new coordinate is (kx, ky).

Tags

CCSS.8.G.A.3

Front

What are the coordinates of the point (3, 6) under a dilation of 2?

Back

(6, 12) is the result of the dilation.

Tags

CCSS.8.G.A.3

Front

What happens to the coordinates of a triangle's vertices when dilated by a scale factor of 3?

Back

Each vertex is multiplied by 3.

Tags

CCSS.8.G.A.3

Front

If a triangle has vertices (2,0), (3,-1), and (-2,-5), what are the new coordinates after dilation by a scale factor of 3?

Back

(6,0), (9,-3), (-6,-15) are the new coordinates.

Tags

CCSS.8.G.A.3

Front

What is the center of dilation?

Back

The point from which the dilation is applied, often the origin.

Tags

CCSS.8.G.A.3

Front

What does it mean if the scale factor is 1?

Back

The image will be the same size as the pre-image.

Tags

CCSS.8.G.A.3