Reflections Across the X Axis and Translations

Identify the transformation of figure PQRSTU to figure P"Q"R"S"T"U"

• translation across the y-axis

• reflection across the x-axis

• reflection across the y-axis

• rotation 90˚ about the origin

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

• y-axis

• x-axis

A flip is also called a _________.

• Translation

• Reflection

• Rotation

• Dilation

Which triangle is a translation of triangle X?

• triangle A

• triangle B

• triangle C

• triangle D

Which shows this triangle when it is translated two units left?

• 
• 
• 
• 

Which rule describes the x-coordinates in the translation below?

• x + 0
  

• x + 6

• x - 6

• x + 2

Which graph shows the image of the triangle reflected across the line of reflection shown?

• 
• 
• 
• 

Triangle XYZ is reflected across the x-axis, and X = (-11,8). What are the coordinates of X'?

• (11,-8)

• (-8,11)

• (11,8)

• (-11,-8)

The triangles on the grid below represent a translation. To form the image, the pre-image moved

• five units right and three units up.

• two units right and three units up.

• five units left and three units down.

• two units left and three units down.

Gregory knows that triangle ABC is reflected onto triangle A'B'C'. Which statement about the figures is true?

• If Gregory draws the segment with endpoints A and A', then the midpoint will lie on the line of reflection.

• If Gregory draws the segment with endpoints B and C', then the midpoint will be on the line of reflection.

• Points A and B are equidistant from the line of reflection.

• Line segment AB will be perpendicular to the line of reflection.