Lesson 2 Review!

translations

100

When a figure is translated to the left, the x value ...

decreases

200

When a figure is translated up, the _______ value increases

y

300

translate the point (9, 2) down 3 units

(9, -1)

400

Translate (2, 7) six units to the right

(8, 7)

500

translate (2, 4) four units down and three units to the right

(5, 0)

reflections

100

reflect across the x, the ______ stays the same and the ________ changes to the opposite

x, y

200

reflect across the y, the ________ stays the same and the ________ goes opposite

y, x

300

Reflect (3, 8) across the x axis

(3, -8)

400

reflect (9, -1) across the y axis 

(-9, -1)

500

Martin was supposed to reflect (6, -2) across the x axis. He incorrectly plotted the point at (2, 6). What transformation did he perform instead? 

rotate 90 degrees CCW around the origin

rotations

100

a rotation 270 degrees CCW = 

90 CW

200

(2, 3) rotated 180 degrees is 

(-2, -3)

300

(4, 7) rotated 90 degrees CW around the origin is at 

(7, -4)

400

(3, 5) rotated 270 degrees clockwise around the origin is at 

(-5, 3)

500

True/False: (6, -1) is a corresponding vertex on an image to the figure with vertices at (-6, -1), (-4, -2), (-3, -7) that has been reflected over the x axis. 

false. (-6, 1) is a corresponding vertex

quadrants

100

Which quadrant is (2, -3) in? 

4

200

Which quadrant is (-5, 2)? 

2

300

Which quadrant would an image be in, if it started in quadrant 1 and was reflected over the y axis? 

2

400

Which quadrant would an image be in, if the original figure started in quadrant 4 and were reflected over the x axis? 

1

500

Which quadrant would an image be in, if the original figure started in quadrant 3 and were rotated 180 degrees? 

1

vocab

100

We rotate around the ___________________   _____ ____________, which is the origin (0,0)

center of rotation

200

We use the x and y axis as the ________  _____ _______ when we reflect. 

line of reflection

300

There are four ___________ in a coordinate plane

quadrants

400

The points on a figure where lines intersect are called 

vertices (1 vertex/2 vertices)

500

the shape that results when a figure has been transformed

image