⭐️TEST - Unit 3 Review

Translations, reflections and rotations are all known as ________________________.

• Geometry

• Congruent

• Transformation

• Similar

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

What does a translation do to an image?

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

How would you describe the translation of the green shape to the red shape?

• 2 down

• 2 up, 1 left

• 2 up

• 2 down, 1 right

Which reflection does the image show?

• Reflection across the x-axis according to the rule (x, y) → (x, −y)
• Reflection across the y-axis according to the rule (x, y) → (x, −y)
• Reflection across the x-axis according to the rule (x, y) → (−x, y)
• Reflection across the y-axis according to the rule (x, y) → (−x, y)

• Reflection

• Rotation

• Translation

What is the rule for the following reflection? 

• Reflection across       y = −1
• Reflection across        y = 1
• Reflection across            x = −1
• Reflection across          x = 1

Vector is a quantity with:

• magnitude and direction

• magnitude

• direction

• none of the above

Vectors are equivalent if they have the same magnitude and direction. Which are equivalent vectors?

• u and -u

• u and a

• u and v

• u and b

If you were to rotate ABCD 180° about the origin, what would the coordinates of B' be?

• (0, 0)
• (-6, -5)
• (-1, 3)
• (-6, 2)