Rotations and Dilations

What is the rule for rotating a figure 180 degrees

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Tell whether each transformation is a dilation. Explain.

• No, scale factor isn't the same.

• Yes, scale factor is the same

Tags

CCSS.8.G.A.3

A dilation with a scale factor k>1 is called what?

Tags

CCSS.8.G.A.3

A triangle has vertices with coordinates (2,0), (3, -1) and (-2,-5). If the triangle is dilated by a scale factor of 3 with the origin as the center of dilation, what are the coordinates of the vertices of the image?

• (5,3), (6,2), (1,-2)

• (6,0), (9,-3), (-6,-15)

• (2/3,0), (1,-1/3), (-2/3,-5/3)

• (-1,-3), (0,-4), (-5,-8)

Tags

CCSS.8.G.A.3

Identify the transformation from A to D.

• 90^o Clockwise Rotation

• 180^o Rotation

• 270^o Clockwise Rotation

• 360^o Rotation

Tags

CCSS.HSG.CO.B.6

What Transformation is visible?

• Reflection

• Translation

• Rotation

• Dilation

Tags

CCSS.8.G.A.3

Triangle C is rotated 180° with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

• A

• B

• C

• D

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Is the dilation a reduction or enlargement if the scale factor is 1/5?

• enlargement

• reduction

Tags

CCSS.8.G.A.3

Is the dilation a enlargement or reduction if the scale factor is 2.5?

• Enlargement

• Reduction

Tags

CCSS.8.G.A.3

State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor of 1/2.

• (5,3)

• (20,12)

• (-20,-12)

• (-5,-3)

Tags

CCSS.8.G.A.3