Transformations Unit Review

Which is the correct algebraic representation of the transformation below?

• (x, y) → (y, -x)

• (x, y) → (-y, x)

• (x, y) → (-x, y)

• (x, y) → (-x, -y)

The table below shows the coordinates of a figure that was transformed. Which is a correct description of the transformation?

• Rotation 180° clockwise

• Reflection over the x-axis

• Translation 5 units left and 2 units down

• Translation 10 units left and 4 units down

Triangle PQR has the following coordinates: P(-9, -12) Q(-6, -13) R(-7, -4). Where is Q’ after a translation 9 units right and 11 units up?

• Q'(3, -2)

• Q'(3, -24)

• Q'(15, -2)

• Q'(-15, -2)

Use the transformation shown below to answer. Which is a true statement about the transformation?

• Triangle ABC was translated 8 units left and 3 units up.

• The pre-image is in quadrant II.

• The orientation of the figure was changed.

• The orientation of the vertices was changed.

• It doubles in size.

• It remains the same size.

• It becomes half the size.

• It becomes four times the size.

If a figure is rotated 270 degrees clockwise about the origin, what is the rule for this rotation?