What is a translation?
What is moving it to a new location with no change to the looks of the figure
A reflection is like what?
What is like a mirror image
A rotation turns a figure around a fixed?
What is a point?
A dilation is when you do this to a figure.
What is make it bigger or smaller? (expansion or contraction)
Does the figure below have line symmetry, rotational symmetry or both?
Line symmetry only
Find the new coordinates of (10,12) if you translate the point three units left and 4 units up.
What is (7,16)?
A reflection creates this type of mirror image across a line
What is a flip?
Find the new coordinates of (5,4) after you rotate the point with 180º.
What is (-5, -4)?
If a right triangle's preimage was larger than the image, is this dilation resulting in the right triangle getting smaller or bigger?
What is smaller?
This figure has rotational symmetry. Name the order and degree it is rotated.
Order = 4; Degree of rotation = 90 degrees
A translation slides a triangle 5 units right and 3 units left. Write the rule.
What is (x + 5 , y+ 3)
(5,2) over the y-axis?
What is (-5,2)?
Rotate (-3,4) 180 degrees?
What is (3, -4)
If a rhombus's preimage was smaller than the image of the rhombus, is the dilation getting bigger or smaller?
What is bigger?
Draw all lines of symmetry for the following image. (Describe them to your partner.)
Horizontal
Vertical
Diagonally with a positive slope
Diagonally with a negative slope
If a square at a vertex at (-2,6) is translated by (x-3 , y-2), what is the new coordinate of that vertex?
What is (-5, 4)
Reflect (-3 , -4) over the line x=0. What's the image?
What is (3, -4)?
How many degrees is a half-turn rotation?
What is 180 degrees?
True Or False: Dilations always preserve the angle measures of a figure?
What is True?
This figure has rotational symmetry. What is the order and angle of rotation?
Order = 5; Degree of rotation = 72 degrees
Does a translation change the look of a shape?
What is No, there is no change to the looks of the shape.
What's an easy to remember example of a reflection?
What is looking at yourself in the mirror?
A square was once to the left of a graph and is now counter-clockwise, is this a rotation?
What is yes?
LUCKY SHOT! BONUS!!
What is BONUS!!
Which image(s) have BOTH reflection symmetry (line symmetry) AND rotational symmetry? (Assume all triangles you see are equilateral & quadrilaterals are squares.)
A, B, C, D, E, G & H