Rigid Transformations (Unit 1 - A)

A slide is also called a _________.

• Translation
• Reflection
• Rotation
• Transformation

What does a translation do to an image?

• Turns it 90* clockwise
• Mirrors it
• Shrinks it
• Slides it

How is triangle ABC being translated to triangle A'B'C'?

• up 3, left 8
• up 9, left 4
• down 3, right 8
• down 9, right 4

What transformation is happening?
(x, y) ----> (x + 2, y - 3) 

• slide up 2, left 3
• slide right 2, up 3
• slide right 2, down 3
• slide left 3, right 2

Janet rotated the triangle 90° clockwise about the origin to create figure A'B'C'. What are the coordinates of B' after the rotation?

• (4, -2)

• (-2, -4)

• (4, 2)

• (-2, 4)

Triangle XYZ will be translated so that the coordinates of X' are (5, 11). What will be the coordinates of Z'?

• (5, 8)

• (6, 7)

• (7, 6)

• (8, 5)

To show that Figure A and Figure B are congruent, which series of transformations could be used?

• Rotate Figure A about the origin 180 degrees followed by a reflection over the x-axis

• Translate Figure A 3 units right followed by a refection over the x-axis

• Reflect Figure A over the y-axis followed by a reflection over the x-axis

• Reflect Figure A over the y-axis followed by a 90 degrees clockwise rotation about the origin

Which answer shows a reflection across the x-axis?

• d
• c
• b
• a

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

• y-axis
• x-axis

Square JKLM is shown on the graph. If the square is rotated 270 degrees counter-clockwise about the origin and then reflected over the x-axis, where will point L" be located?

• (4, 4)

• (4, -4)

• (-4, -4)

• (-4, 4)