Rotations, Reflections, Translations

If (4,-2) → (4,-2) represents a counterclockwise rotation of the point on a coordinate plane, how many degrees is the rotation?

• 90

• 180

• 270

• 360

Which transformation(s), no matter which one you do, will the resulting image be congruent? (select all that apply)

• translation

• reflection

• rotation

• dilation

Which answer shows a reflection across the x-axis?

• d

• c

• b

• a

Point A (2,4) is rotated 90 counter clockwise about the origin and is mapped onto A'. What are the coordinates of A'?

• (4, -2)

• (-4, -2)

• (-4, 2)

• (2, -4)

Triangle ABC has vertices A(-3, 5), B(2, 5) and C(0, 9). What would be the coordinates of A' after a reflection over the y-axis?

• (3, 5)

• (-3, -5)

• (-3, 5)

• (3, -5)

Point B has coordinates (-5, -8). What would be the coordinates of B' after a reflection over the x axis?

• (-5, 8)

• (5, -8)

• (8, -5)

• (5, 8)

Triangle ABC has vertices A(-3, 5), B(2, 5) and C(0, 9). What would be the coordinates of A' after a translation 3 units right and 4 units down?

• (-6, 9)

• (0, 1)

• (0, 9)

• (-6, 1)

Triangle ABC has vertices A(-3, 5), B(2, 5) and C(0, 9). What would be the coordinates of B' after a rotation 180 degrees?

• (-5, -2)

• (-2, 5)

• (2, -5)

• (-2, -5)

Triangle ABC has vertices A(-3, 5), B(2, 5) and C(0, 9). What would be the coordinates of B' after a rotation 90 degrees counterclockwise?

• (-5, 2)

• (-5, -2)

• (2, -5)

• (-2, -5)

Triangle ABC has vertices A(-3, 5), B(2, 5) and C(0, 9). What would be the coordinates of B' after a reflection over the x-axis?

• (-5, 2)

• (-5, -2)

• (2, -5)

• (-2, -5)