Rotations on a Coordinate Grid

Identify the rule after a 180° CLOCKWISE or COUNTER CLOCKWISE
(x, y) ---> ___________

• ( -x, -y)

• ( -y, x)

• ( -x, y)

• (y, -x)

The rule for rotation of 180 degrees is  
(x, y) --> _

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

Which of the following images show a rotation of 270⁰ counter-clockwise?

• 
• 
• 
• None of the above

Rotate the point (5,5) around the origin 180 degrees. State the image of the point.

• (5,-5)

• (5,5)

• (-5,5)

• (-5,-5)

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

• (-5, 5)

• (-3, -5)

• (-5, 3)

• (-3, 3)

What is the rule for rotating a figure 90 degrees counterclockwise

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

What is the rule for rotating a figure 180 degrees

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

What is the rule for rotating a figure 270 degrees counterclockwise

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

A turn is also called a ___________.

• Translation

• Reflection

• Rotation

• Transformation

Triangle ABC has vertices A(-4, 1), B(-2, 1), and C(-1, -2) on a coordinate grid. If ∆ABC is rotated 180° about the origin, what are the coordinates of A'B'C'?

• A'(1,4) B'(1,2) C'(-2,1)

• A'(4,-1) B'(2,-1) C'(1,2)

• A'(-1,-4) B'(-1,-2) C'(2,-1)

• A'(-4,1) B'(-2,1) C'(-1,-2)