RTI 4.5 Dilations

​RTI 4.5 Dilations

​

"ABILITY is what you're capable of doing.

MOTIVATION determines what you do.

ATTITUDE determines how well you do it."

Home

Open in new tab

Copy link

Multiple Choice

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

• ½

• ¼

• 4

• 2

Multiple Choice

A dilation is which of the following:

• only an enlargement

• only a reduction

• Either an enlargement or a reduction

• Neither an enlargement or a reduction

Multiple Choice

Similar figures have the same ______ but different ______.

• measure; shapes

• sizes; shapes

• value; measures

• shape; sizes

Multiple Choice

Choose the correct scale factor: HINT!!! $$SCALE\ FACTOR\ =\frac{IMAGE}{PRE-IMAGE}$$  

• 2

• 3

• 1/3

• 1/2

Multiple Choice

Which of these are not preserved by a dilation?

• orientation
• side lengths
• parallelism
• angle measures

Multiple Choice

Write an algebraic expression for the dilation above.

• (x,y) →( ³/₅ x, ³/₅ y)

• (x,y) →(3x, 3y)

• (x,y) →(⁵/₃ x, ⁵/₃ y)

• (x,y) →(5x, 5y)

Multiple Choice

Write an algebraic expression for the dilation above.

• (x,y) → (¹/₅ x, ¹/_{5 y)}

• (x,y) → (¹/₃ x, ¹/₃ y)

• (x,y) → (⁵/_{2 x,} ⁵/_{2 y)}

• (x,y) → (3x, 3y)

Multiple Choice

What are the coordinates if the figure is dilated by 2?

• A'(1,2); B'(2,3); and C'(3,1)

• A'(2,4); B'(4,6); and C'(6,2)

• A'(2,8); B'(4,12); and C'(6,4)

• A'(4,8); B'(8,12); and C'(12,4)

Multiple Choice

Quadrilateral ABCD was dilated with the origin as the center of the dilation to create quadrilateral A'B'C'D'. Which rule best represents the dilation that was applied to quadrilateral ABCD to create quadrilateral A'B'C'D'?

Multiple Choice

Jason performed a transformation on a triangle with pre-image coordinates D(-6,0) E(-6,3) and F(-9,9). The coordinates of the image are D'(-2,0) E'(-2,1) and F' (-3,3). He challenges his friend Steve to describe the transformation. What response is correct?

• The pre-image was translated 3 units to the left

• The pre-image was translated 3 units to the right

• The pre-image was dilated by a scale factor of 1/3.

• The pre-image was dilated by a scale factor of 3.

Multiple Choice

What is the scale factor of the dilation? A'B'C' is the image.

• 2

• 1/3

• 3/2

• 2/3

Multiple Choice

Enlargement or reduction?  Find the scale factor!

• It's a reduction; the scale factor is 2.
• It's an enlargement; the scale factor is 2.
• It's an enlargement; the scale factor is 1/2.
• It's a reduction; the scale factor is 1/2.