Transformations Mixed Practice

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

• S'(-7, -3)

• S'(-3, 7)

• S'(-3, -7)

• S'(7, 3)

Triangle GHI is reflected across the y-axis. What are the coordinates of I'?

• (-2, 6)

• (2, 6)

• (-6, -2)

• (6, 2)

What geometric form do rotations move points along?

• Rays

• Parallel Lines

• Perpendicular Lines

• Circular Arcs

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

• (-4,-3)

• (-4,3)

• (4,-3)

• (3,4)

How many degrees was the figure rotated?

• 90 degrees counterclockwise 

• 180 degrees

• 90 degrees clockwise

What is the angle of rotation for this counterclockwise rotation about the origin?

• 90°

• 180°

• 270°

• 360°

True or False: When a point is reflected across a line of symmetry, it is perpendicular to the pre-image.

• True

• False

What is the rule for the following reflection? 

• Reflection across      x-axis

• Reflection across        y-axis

• Reflection across            y = x

• Reflection across          y = −x

Identify the transformation from ABC to A'B'C'.

• 90^o clockwise rotation

• 90^o counter clockwise rotation

• Reflection across the y-axis

• Reflection across the x-axis

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate -90 degrees around the origin

• Rotate -90 degrees around the origin and then translate down.

• Reflect across the x-axis and then reflect across the y-axis.

• Translate up and then rotate 90 degrees about the origin.