1.   To rotate a figure 90° counterclockwise about the origin, use the matrix _____ .
    A. B.
    C. D.
    Hint

  2.   To dilate a figure on the coordinate plane, use a _____ to multiply the figure’s vertex matrix.
    A. scalar B. reduction matrix
    C. dilation matrix D. multiple
    Hint

  3.   Use a matrix to find the coordinates of the endpoints of the image of with A(-6, 6) and B(9, -8) after a reflection in the line y = x.
    A. B.
    C. D.
    Hint

  4.   For a reflection in the x-axis, multiply the vertex matrix on the left by _____ .
    A. B.
    C. D.
    Hint

  5.   Find the coordinates of the image of with vertex matrix under a rotation 180° counterclockwise about the origin.
    A. B.
    C. D.
    Hint



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