Rotation, Reflection

If the dotted figure is the image, the original figure was reflected over the ...

• x-axis

• y-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which answer shows a reflection across the x-axis?

• d

• c

• b

• a

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect over the x-axis.
Find K′.

• (4, 1))

• (-1, -4)

• (1, -4)

• (1, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

∆QRS contains the points: Q(4, 2) R(5, 1) S(3,7). If the triangle is reflected across the y-axis, what will S' be?

• S'(3, 7)

• S'(-3, 7)

• S'(-3, -7)

• S'(3, 7)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Is the picture being reflected in the y-axis or x-axis?

• y-axis

• x-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A turn is also called a ___________.

• Translation

• Reflection

• Rotation

• Transformation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle C is rotated 180° counterclockwise with the origin as the center of rotation to create a new figure. Which rule describes this transformation?

• (x,y)→(y, -x) 

• (x,y)→(-x,-y)

• (x,y)→(x,y)

• (x,y)→(-y,x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• (0, 0)

• (-6, -5)

• (-1, 3)

• (-6, 2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Point (-5,2) is reflected over the y axis.  Where is the new point located?

• (5,2)

• (-5,-2)

• (-5,2)

• (5,-2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

How many degrees was the figure rotated?

• 90 degrees counterclockwise 

• 180 degrees

• 90 degrees clockwise

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5