Rotations & Dilations

What is the rule for rotating a figure 90 degrees counterclockwise

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3

What is the rule for rotating a figure 180 degrees

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

Tags

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.4

CCSS.HSG.CO.B.6

Rotate the point (5,5) around the origin 180 degrees. State the image of the point.

• (5,-5)
• (5,5)
• (-5,5)
• (-5,-5)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3

What is the rule for rotating a figure 270 degrees counterclockwise

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)
• (-3, -5)
• (-5, 3)
• (-3, 3)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

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 k = 1/2.

• (5,3)
• (20,12)
• (-20,-12)
• (-5,-3)

Tags

CCSS.8.G.A.3

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

• ½
• ¼
• 4
• 2

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Dilate Point B by a scale factor of 3:

• (12,0)
• (12,12)
• (4,3)
• (0,12)

Tags

CCSS.8.G.A.3

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor k = 2.

• (2,4.5)
• (-8,-18)
• (8,18)
• (9,4)

Tags

CCSS.8.G.A.3

A turn is also called a ___________.

• Translation
• Reflection
• Rotation
• Transformation

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3