Transformations

Translations

100

A translation is when you do this to a figure.

What is move it right, left, up, or down?

200

Find the new coordinates of (10,12) if you translate the point three units left and 4 units up.

What is (7,16)?

300

Write the algebraic notation of point (x,y) after it moves 3 spots to the left and 7 spots up.

What is (x-3,y+7)?

400

Describe the translation for this notation: (x,y) --> (x + 8, y + 4)

What is a translation of 8 units to the right and 4 units up?

500

Graph ∆LMN after a translation of 6 units to the right and 4 units down. L(0,3) M(6,4) N(3,9)

What is L'(6,-1), M'(12,0), N'(9,5)?

Reflections

100

A reflection is when you do this to a figure.

What is flip it or make a mirror image of it?

200

Find the new coordinates of (3,-2) after you reflect the point over the x-axis.

What is (3,-2)?

300

Write the notation of point (x,y) after it is reflected over the y-axis.

What is (-x,y)?

400

A picture with one point (-3,4) was reflected over the line y=-x. What should be the new coordinates of the point?

What is (-4,3)?

500

Graph rectangle DEFG after a reflection over the line y=x. D(5,5) E(5,8) F(8,8) G(8,5)

What is D'(5,5), E'(8,5), F'(8,8), G'(5,8)?

Dilations

100

A dilation is when you do this to a figure.

What is make it bigger or smaller?

200

Find the new coordinates of (3,-2) if you dilate the point with a scale factor of 4.

What is (12,-8)?

300

Write the notation of point (x,y) after it is dilated with r=6.

What is (6x,6y)?

400

Line segment CD was dilated around the origin by a scale factor of 2. The endpoints of the image are C' (4,0) and D' (6,2). What are the coordinates of the endpoints of the original line segment?

What is C(2,0) and D(3,1)?

500

Graph ∆DEF after a dilation with a scale factor of 0.5. D(2,8) E(2,2) F(6,2)

What is D'(1,4), E'(1,1), F'(3,1)?

Vocabulary

100

Name the types of transformation that are called rigid transformations.

What is reflection, translation, and rotation?

200

An object is moved 3 down and left 2.  What is this movement in vector form?

What is <-2,-3>?

300

A triangle is reflected over the y axis.  What is the shorthand notation for this reflection?

What is lowercase r subscript yaxis?

400

The number that you multiply the x and y coordinates with in a dilation is called what?

What is a scale factor?

500

When an object is transformed and it doesn't change size or shape it is said to be what?.

What is isometric?