Math Dilation

Polygon LMNPQR is shown on the coordinate grid and models the shape of a garden in a park. Polygon LMNPQR will be dilated with the origin as the center of dilation to create polygon L 'M′′N′P′Q′R′. The vertex Q′ will be located at (21, 7).

Which rule best represents the dilation?

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A transformation is applied to a figure to create a new figure on a coordinate grid. Which transformation does NOT preserve congruence?

• A rotation of 270° counterclockwise

• A reflection across the y-axis

• A dilation by a scale factor of 1.5

• A translation of 50 units down

A dilation is which of the following:

• only an enlargement

• only a reduction

• either an enlargement or a reduction

• neither an enlargement nor a reduction

Does the image show a Dilation? If yes, did the image enlarge, reduce or none of the above?

• Yes, enlarge

• Yes, reduce

• No

Under a dilation, which scale factor will result in a congruent image?

• -2

• 0

• 1

• ¹/₂

Quadrilateral NDPM was dilated to quadrilateral N'D'P'M'. What was the scale factor for this dilation?

• 2

• 3

• 1/3

• 1/2

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

• ½

• ¼

• 4

• 2

What scale factor was used to produce the image?

• 2

• -2

• ¹/₂

• 1

What would be the scale factor (k) in the dilation shown?

• 1

• 1/2

• 4

• 2

Which of the following statements is true?

• The dilation is an enlargement and the scale factor is > 1.

• The dilation is an enlargement and the scale factor is < 1.

• The dilation is a reduction and the scale factor is > 1.

• The dilation is a reduction and the scale factor is < 1.

Tags

8.3.C