transformations

How many lines of symmetry are there on a square?

• 0

• 1

• 2

• 4

Triangle A is rotated 270° counterclockwise with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

• A
• B
• C
• D

What is the angle of rotational symmetry in a regular octagon?

• 36°

• 45°

• 60°

• 72°

What is the Degree counter clockwise of Rotation that would map H to C?

• 165^o

• 125^o

• 135^o

• 55^o

What is an isometry?

• A transformation in which the preimage and image are congruent.
• A transformation in which the preimage and image are different.

If the image of a Point P reflected over the y-axis is (-6,-2), what was the preimage?

• (6,-2)

• (-6,-2)

• (-2,-6)

• (-6,2)

What is the rule for a reflection across the y = x line?

• (x, y) becomes (x, -y)

• (x, y) becomes (-x, y)

• (x, y) becomes (-x, -y)

• (x, y) becomes (y, x)

What are the new coordinates of A' after a reflection across the line y=x?

• (1,1)

• (1, 2)

• (2,1)

• (-1, 2)

Rotate the point (-3,-4) around the origin 180 degrees. State the image of the point.

• (-4,-3)
• (-4,3)
• (4,-3)
• (3,4)

Rotate the point (7,8) around the origin 90 degrees counterclockwise.
State the image of the point.

• (-7,-8)
• (8,-7)
• (-8,7)
• (8,7)