1.   Triangle DEF has vertices D(-6, -1), E(-4, -8), and F(-2, -5). Find the coordinates of the image of triangle DEF after it is rotated 180° about the origin.
    A. D´(1, 6), E´(8, 4), F´(5, 2)
    B. D´(6, 1), E´(4, 8), F´(2, 5)
    C. D´(-1, -6), E´(-8, -4), F´(-5, -2)
    D. D´(1, -6), E´(8, -4), F´(5, -2)
    Hint

  2.   What is the point about which a figure is rotated called?
    A. image B. point
    C. transformation point D. center of rotation
    Hint

  3.   What is the rule where the angle of rotation is 90° counterclockwise, and the center is (0, 0)?
    A. (x, y)(-x, y)
    B. (x, y)(-x, -y)
    C. (x, y)(-y, -x)
    D. (x, y)(-y, x)
    Hint

  4.   What is the rule where the angle of rotation is 90° clockwise, and the center is (0, 0)?
    A. (x, y)(y, -x)
    B. (x, y)(-y, -x)
    C. (x, y)(-x, -y)
    D. (x, y)(-x, y)
    Hint

  5.   What is the rule where the angle of rotation is clockwise, and the center is (0, 0)?
    A. (x, y)(-y, -x)
    B. (x, y)(-y, x)
    C. (x, y)(-x, y)
    D. (x, y)(-x, -y)
    Hint



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