Unit 3 Review

Which equation describes a line of symmetry for square ABCD?

• x = y

• y = 0

• y = 1

• x = 1

Which equation describes a line of symmetry for Triangle ABC?

• y = x

• y = 6

• x = 6

• y = -x

Which shape has a line of symmetry at y = 0?

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Which figure below does not have point symmetry?

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If you are standing on a turntable facing north and after 45 seconds you have rotated 270 degrees clockwise, in what direction are you facing?

• North

• South

• East

• West

If a coordinate was transformed from (-1, 4) to (-2, 8), what was the scale factor used?

• -2

• 2

• 1/2

• -1/2

Which is a reflection across the x-axis of the figure in the coordinate plane?

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Which of the following has a scale factor of 1/3?

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The rectangle ABCD is dilated about the origin to obtain the rectangle A'B'C'D'.

If the length of A'B' = 6 units, what is the length of B'C'?

• 12 units

• 2.5 units

• 10 units

• 3 units

Triangle ABC has coordinates A (5, 1), B (7, 6), C (9, 3). If triangle ABC is reflected over the x-axis and then translated such that (x, y) -> (x + 2, y - 1), what is the resulting image of point C?

• (11, 2)

• (2, 11)

• (7, 0)

• (9, -3)