Transformations and Symmetry

M13 review

!!! Reem Talal
!! 9A3

Multiple Choice

How can you know if a figure has been reflected?

• when an object is turned clockwise or counterclockwise around a given point.

• When it moves a shape left, right, up, or down but does not turn.

• When each point of the preimage and its corresponding point on the image are the same distance from the line of reflection.

Multiple Choice

Determine the coordinates of Q(6, -4) after a reflection in the line x=2.

• Q'(-3, 2)

• Q'(-4, -2)

• Q'(-2, -4)

• Q'(8, 0)

Fill in the Blanks

Multiple Choice

Determine whether a translation maps ΔJKL onto ΔJ'K'L'. If so, find the translation vector. If not, explain why.

• yes; <5, 3>

• No, this is a reflection.

• yes; <3, 5>

Traingle XYZ has vertices X(0,2) Y(4,4) and Z (3,-1). Graph ⃤XYZ and its image after a rotation of 180 dgree about (2,-3).​

Q6:

​Answer:

Multiple Choice

Draw the line of symmetry and state how many lines of symmetry it has.

• It has 6 lines of symmetry.

• It doesn't have any lines of symmetry. (0)

• It has 3 lines of symmetry.