Vocabulary
Translations
Rotations
Reflections
Transformations
100

Which transformation(s) is non-rigid? Why?

Dilation, because it does not maintain the shape and size of the pre-image. The size changes (either expands or shrinks).

100

Describe how to move a point that is being translated by <3,-2>.

right 3, down 2

100

What is point A' if point A (5,2) is rotated clockwise 90°?

(2,-5)

100

What is A' if point A (-3,3) is reflected across the x-axis?

(-3,-3)

100

What is the transformation that maps ΔABC onto ΔA'B'C'?    

Reflection across the x-axis.

200

What is a rigid transformation? Give 3 examples.

A transformation that does not affect the size and shape of the pre-image when going to the final image. Reflection, rotation and translation.

200

Describe the transformation (x,y) --> (x+1,y+2).

Translate right 1, up 2.

200

What is B' if point B (2,-1) is rotated clockwise 180°?

(-2,1)

200

What is B' if point B (-3,3) is reflected across the y-axis?

(3,3)

200

What is the transformation that maps ΔABC onto ΔA'B'C'?  

Dilation by 1/2.

300

What are the dotted lines in this image called?

Lines of Symmetry

300

Describe the translation that maps ΔABC onto ΔA'B'C' in notation form.    

(x-4, y+4)

300

What is C' if point C (3,4) is rotated clockwise 270°?

(-4,3)

300

What is C' if point C (-3,3) is reflected across the line y=x?

(3,-3)

300

What is the transformation that maps ΔABC onto ΔA'B'C'?  

Counter clockwise rotation 90°.