Transformations Dilations Reflections Translations

Which rule shows a reflection over the y-axis?

• (x, y) --> (-x, y)

• (x, y) --> (-x, -y)

• (x, y) --> (x, -y)

• Not here

If a figure is dilated by a scale factor of 1/3, what happens to perimeter?

• 1/3 of the size

• 1/9 the size

• 2/3 the size

• not here

• 2/9

If figure is dilated by a scale factor of 2/5, what happens to the area?

• 2/5

• 4/25

• 4/5

• not here

• 1/5

A figured is dilated by a scale factor of 3. What rule could be used to find the new perimeter?

• p --> 3p

• p --> 3(3)p

• p --> 3 + p

• p --> 3 + 3 + p

• not here

A figured is dilated by a scale factor of 3. What rule could be used to find the new area?

• a --> 3a

• a --> 3(3)a

• a --> 3 + a

• a --> 3 + 3 + a

• not here

What is the rule for this transformation?

• (x, y) --> (x, -y)

• (x, y) --> (-x, y)

• (x, y) --> (x + 0, y - 16)

• Not here

Which transformation(s) preserve congruency?

(Choose all that apply)

• rotations

• reflections

• translations

• dilations

Which points below would represent the coordinate points of the image of a transformation?

• A(3, 2), B(4, 7), C(9, 10)

• A'(3, 2), B'(4, 7), C'(9, 10)

• not here

What's the degree of rotation in this image?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

This figure is in quadrant 4. If it is rotated 90 degrees counter clockwise, which quadrant will it end in?

• quadrant 1

• quadrant 2

• quadrant 3

• quadrant 4