Geometry Lesson 3.1 Practice

How would you translate point P to P'?

• Translate 2 units to the right and  8 units down
• Translate 3 units down and 2 units to the right
• Translate 4 units down and 4 units to the left
• Translate 8 units to the right and 2 units down

Trapezoid ABCD is translated to trapezoid A'B'C'D'. What algebraic rule describes this transformation?

• (x, y) --> (x + 5, y + 8)

• (x, y) --> (x + 5, y - 8)

• (x, y) --> (x - 8, y + 5)

• (x, y) --> (x - 8, y - 5)

Write the rule for this translation:

Slide 5 up and 7 right

• (x, y)---->(x + 5, y + 7)

• (x, y)-----> (x + 7, y + 5)

• (x, y)----> (x - 7, y - 5)

• (x, y)----> (7x, 5y)

Determine how to translate triangle ABC to triangle A'B'C' using the algebraic rule.

• (x, y) --> (x + 2, y - 5)

• (x, y) --> (x + 2, y - 9)

• (x, y) --> (x - 2, y - 9)

• (x, y) --> (x - 2, y + 9)

When translating left or right on a coordinate plane, what coordinate is affected?

• x-coordinate

• y-coordinate

• both x- and y-coordinates

• neither the x- nor the y-coordinate

When translating up or down on a coordinate plane, what coordinate is affected?

• x-coordinate

• y-coordinate

• both the x- and y-coordinates

• neither the x- nor the y-coordinate

Which answer shows a reflection across the x-axis?

• d
• c
• b
• a

Is this rotation or reflection symmetry?

• Rotation
• Reflection
• Translation

A flip or mirror is also called a ___________.

• Translation

• Reflection

• Rotation

• Transformation

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

• 1/2 turn rotation

• 3/4 turn rotation

• Reflection across the y-axis

• Reflection across the x-axis