Rotation

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)

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

Reflect Point C over the y-axis:

• (-3, 2)
• (3,2)
• (-2,3)
• (3,0)

A turn is also called a ___________.

• Translation
• Reflection
• Rotation
• Transformation

A flip is also called a ___________.

• Translation

• Reflection

• Rotation

• Transformation

A slide is also called a _________.

• Translation
• Reflection
• Rotation
• Transformation

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

• (3, 5)

• (-3, -5)

• (-5, 3)

• (5, 3)

Which rule describes rotating 180° clockwise?

• ( x, y ) → ( y, -x )

• ( x, y ) → ( -x, -y )

• ( x, y) → ( -y, -x )

• ( x, y ) → ( -y, x )