Reflections, Translations and Angles

Congruent geometric figures have the:

• Same size
• Sides Equal
• Same Size and Same Shape
• Angles Equal

What does a translation do to a figure on the coordinate plane?

• Rotates it
• Flips it
• Shrinks it
• Slides it

Sliding a figure is a ...

• Rotation
• Translation
• Dilation
• Reflection

Write the rule for this translation:
Slide 3 up and 2 right

• (x, y)---->(x + 3, y + 2)
• (x, y)-----> (x+2, y + 3)
• (x, y)----> (x - 2, y + 3)

What transformation is happening to the red triangle to get to the blue triangle?

• Translation
• Rotation
• Reflection
• Dilation

Identify the transformation.

• Reflection across y-axis
• 90 Rotation counter clockwise
• Translation 5 units left, 1 unit up.
• Translation 5 units right, 1 unit down

How is Quadrilateral EFGH translated to E'F'G'H'?

• 6 down
•  1 right, 6 down
•  3 left, 6 down
• , 8 down,1 right

Flipping a figure is a ...

• Rotation
• Reflection
• Dilation
• Translation

Reflections over the x-axis change the ____-__________. 

• y-coordinate
• x-coordinate

State the line of reflection.

• Reflection across y-axis
• Reflection across x-axis
• Reflection across x = 1
• Reflection across y = 1