Week 2 #1 Geometry Summer School Cyclical Review

Use page 12.

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

State the image of the new point.

• (-4,-3)
• (-4,3)
• (4,-3)
• (3,4)

Use page 12.

A counterclockwise rotation of 90° is equivalent to how many

degrees of rotation clockwise?

• 90°

• 180°

• 270°

• 360°

Use page 12,

Which rule describes rotating 180° clockwise?

• ( x, y ) → ( y, -x )

• ( x, y ) → ( -x, -y )

• ( x, y) → ( x, y )

• ( x, y ) → ( -y, x )

Use page 12.

Which rule describes rotating 270° clockwise?

• ( x, y ) → ( y, -x )

• ( x, y ) → ( -x, -y )

• ( x, y) → ( x, y )

• ( x, y ) → ( -y, x )

Use page 12.

Rotate K (7, 8) around the origin 90° counterclockwise.

State the image of K'.

• K' (-7, -8)

• K' (8, -7)

• K' (-8, 7)

• K' (8, 7)

Use page 12 (if needed).

Is the picture being reflected in the y-axis or x-axis?

• x-axis

• y-axis

Use page 12 (if needed).

Reflect a figure over the y-axis

• Change the x-coordinate
• Change the y-coordinate

Use page 12 (if needed).

Reflect a figure over the x-axis

• Change the x-coordinate
• Change the y-coordiate

Reflect the point (2, -4) over the y-axis.

• (-4, 2)
• (-2, 4)
• (-2, -4)
• (2, 4)

Determine how to translate triangle ABC to triangle A'B'C'.

• left 2, up 9
• right 2, down 9
• left 2, down 9
• left 2, up 5