1.   Triangle ABC has vertices A(7, 2), B(3, -1), and C(1, 4). Find the image of the triangle after a reflection over the x-axis.
    A. A'(7, -2), B'(3, 1), C'(1, -4) B. A'(7, -2), B'(-1, 3),
C'(-1, -4)
    C. A'(2, 7), B'(-1, 3), C'(4, 1) D. A'(-7, -2), B'(-3, 1),
C'(-1, -4)
    Hint

  2.   Suppose a figure is animated to spin around a certain point. If the image has key points as A(2, 1), B(3, 5) and C(6, 2), and the rotation is about the origin, find the location of these points at a 270° counterclockwise rotation.
    A. A'(-1, 2), B'(-5, 3), C'(-2, 6) B. A'(-2, -1), B'(-3, -5),
C'(-6, -2)
    C. A'(1, -2), B'(-5, 3), C'(-2, 6) D. A'(1, -2), B'(5, -3), C'(2, -6)
    Hint

  3.   Find the image of after Rot90 · Ry-axis if the vertices are
A(2, -3), B(6, -3), and C(2, 5).
    A. A'(-3, 2), B'(-3, 6),
C'(5, 2)
B. A'(3, 2), B'(3, 6), C'(5, -2)
    C. A'(-3, -2), B'(-3, -6),
C'(-5, -2)
D. A'(3, -2), B'(3, -6),
C'(-5, -2)
    Hint

  4.   The quadrilateral with vertices A(-1,5), B(2,7), C(4,5) and D(3,3) is reflected over the line y = x . Find the image of the quadrilateral after the reflection.
    A. B.
    C. D.
    Hint

  5.   Use matrices to determine the coordinates of the image of
with vertices A(-3,4), B(-5,2) and C(-6,5) once it is rotated 90°.
    A. A'(-3,-4), B(-5,-2) and C'(-6,-5)
    B. A'(-4,-3), B(-2,-5) and C'(-5,-6)
    C. A'(3,-4), B(5,-2) and C'(6,-5)
    D. A'(3,4), B(5,2) and C'(6,5)
    Hint



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