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Unit 7 Day 9 Practice over Reflections

Total questions: 63

Worksheet time: 11hrs 30mins

Name
Class
Date
1.

Triangle JKL will be reflected over the y-axis. What will the coordinates of K' be?

a)

(-5, 2)

b)

(5, 2)

c)

(5, -2)

d)

(-5, -2)

2.

Triangle JKL will be reflected over the y-axis. What is the algebraic representation of the reflection?

a)

(-x, y)

b)

(x, -y)

c)

(-x, -y)

d)

(x, y)

3.

What is the reflection of F (3, 4) over the x-axis?

a)

F' (-3, -4)

b)

F' (3, -4)

c)

F' (-3, 4)

d)

F' (4, 3)

4.

What is the reflection of R (-1, 6) over the y-axis?

a)

R'(1, 6)

b)

R'(6, 1)

c)

R' (-1, 6)

d)

R' (-6, 1)

5.
State the line of reflection.
a)
Reflection across y-axis
b)
Reflection across x-axis
c)
Reflection across x = 1
d)
Reflection across y = 1
6.

Reflect across the y -axis (-3 , -6)

a)
3,6
b)
-3,6
c)
3,-6
d)
3,6
7.

Reflect across the x-axis (9, -1)

a)
9,1
b)
9,-1
c)
-9,-1
d)
-9,1
8.

Reflect across the y-axis (-2, 7)

a)
-2 , 7
b)
-2, -7
c)
2, -7
d)
2,7
9.
Which axis is the horizontal (left-right) one?
a)
x-axis
b)
y-axis
10.
Which axis is the vertical (up-down) one?
a)
x-axis
b)
y-axis
11.

Reflections over the x-axis change the ____-__________.

a)

y-coordinate

b)

x-coordinate

c)

y-axis

d)

x-axis

12.

Reflecting over the y-axis changes the ____-_____________.

a)

x-axis

b)

x-coordinate

c)

y-coordinate

d)

none of the above

13.
What does this show?
a)
reflection over the y-axis
b)
reflection over the y-coordinate
c)
reflection over the x-axis 
d)
reflection over the x-coordinate
14.
This pictures shows what?
a)
reflection over the x-axis
b)
reflection over the x-coordinate
c)
reflection over the y-coordinate
d)
reflection over the y-axis
15.
Which answer shows a reflection across the x-axis?
a)
d
b)
c
c)
b
d)
a
16.
How is trapezoid ABCD translated to trapezoid A'B'C'D'?
a)
Translated 5 units down and 5 units to the right
b)
Translated 5 units down and 1 to the right
c)
Translated 8 units down and 5 units to the right
d)
Translated 5 units down and 4 units to the right
17.
Write a rule for the translation.
a)
 (x -1, y  + 2)
b)
 (x -2, y  + 1)
c)
 (x +2, y  - 1)
d)
(x +1, y  -  2)
18.

What type of transformation is shown?

a)

Rotation

b)

Translation

c)

Reflection

19.

What type of transformation is shown?

a)

Translation

b)

Reflection

c)

Rotation

20.
How is trapezoid ABCD translated to trapezoid A'B'C'D'?
a)
Translated 5 units down and 5 units to the right
b)
Translated 5 units down and 1 to the right
c)
Translated 8 units down and 5 units to the right
d)
Translated 5 units down and 4 units to the right
21.

Reflect (6, -3) over the x-axis. What are the new coordinates of that point after the reflection?

a)

(6, 3)

b)

(-6, -3)

c)

(-3, 6)

d)

(3, -6)

22.
Flipping a figures is a ...
a)
Rotation
b)
Reflection
c)
Dilation
d)
Translation
23.
A slide is also called a _________.
a)
Translation
b)
Reflection
c)
Rotation
d)
Transformation
24.

A flip is also called a ___________.

a)

Translation

b)

Reflection

c)

Rotation

d)

Transformation

25.

Translations are always _______

a)

Congruent

b)

Bigger

c)

Smaller

d)

Rotated

26.
When you reflect a shape, you ______ over an axis or line.
a)
Flip
b)
Rotate
c)
Slide
d)
Expand
27.
Which algebraic rule will produce a translation that is 5 units to the right?
a)
(x, y)  --> (  x ,  y + 5)
b)
(x, y)  --> (  x-5 ,  y + 5)
c)
(x, y)  --> (  x-2 ,  y + 5)
d)
(x, y)  --> (  x+5 ,  y)
28.
Describe the translation of Point A (3, -8) to A'(-4, -5).
a)
(x-4, y-5)
b)
(x+7, y-3)
c)
(x-7, y+3)
d)
(x-3, y+7)
29.
If k=1.25 (k is scale factor), then a dilation will result in a(n)______
a)
reduction
b)
enlargement
c)
scale factor
d)
center of dilation
30.
Find the measure of x:
a)
6
b)
24
c)
33
d)
36
31.

Reflections are a transformation that change an image's

a)

position

b)

size

c)

orientation

32.

Which two triangles are reflections of each other across the x-axis?

a)

A and B

b)

B and D

c)

A and C

d)

C and D

33.

Which two triangles are reflections of each other across the y-axis?

a)

A and B

b)

B and D

c)

A and C

d)

C and D

34.

What axis is the triangle being reflected over?

a)

X-axis

b)

Y-axis

35.

What axis is the image reflected over?

a)

X-axis

b)

Y-axis

36.

Quadrilateral J is reflected over the x-axis. What is the image of the reflection?

a)

F

b)

G

c)

H

d)

Not shown

37.

A flip is also called a (a)   .

Choose from the below words
Translation
Reflection
Rotation
Transformation
38.
Which answer shows a reflection across the x-axis?
a)
d
b)
c
c)
b
d)
a
39.
Reflect (6, -3) over the line x-axis.
a)
(6, 3)
b)
(-6, -3)
c)
(-3, 6)
d)
(3, -6)
40.
Reflect the point (2, -4) over the y-axis.
a)
(-4, 2)
b)
(-2, 4)
c)
(-2, -4)
d)
(2, 4)
41.
Find K' if the figure is reflected across the x-axis
a)
(4, 1))
b)
(-1, -4)
c)
(1, -4)
d)
(1, 4)
42.
State the line of reflection.
a)
Reflection across y-axis
b)
Reflection across x-axis
c)
Reflection across x = 1
d)
Reflection across y = 1
43.
What color is the x-axis?
a)
red
b)
black
c)
green
d)
white
44.
What color is the y-axis?
a)
red
b)
black
c)
green
d)
white
45.
Find K' if the figure is reflected across the x-axis
a)
(4, 1))
b)
(-1, -4)
c)
(1, -4)
d)
(1, 4)
46.
Reflect Point C over the y-axis:
a)
(-3, 2)
b)
(3,2)
c)
(-2,3)
d)
(3,0)
47.
Reflect over x-axis. Which point would be at (3, -6)
a)
A
b)
B
c)
C
d)
H
48.
Where will A' be at, if triangle ABC is reflected by
(x,y) --> (-x,y)?
a)
(2,1)
b)
(1,-2)
c)
(-1,2)
49.
Identify the transformation from ABC to A'B'C'.
a)
90o clockwise rotation
b)
90o counter clockwise rotation
c)
Reflection across the y-axis
d)
Reflection across the x-axis
50.
What is the Algebraic Notation for this Reflection?
a)
(x, y) → (y, x)
b)
(x, y) → (-x, y)
c)
(x, y) → (-y, -x)
d)
(x, y) → (x, -y)
51.
Reflections over the x-axis change the ____-__________. 
a)
y-coordinate
b)
x-coordinate
c)
y-axis
d)
x-axis 
52.

How do you represent reflection over the x axis Algebraically?

a)

(-y, -x)

b)

(x + a, y + b)

c)

(x , -y)

d)

(ax, by)

53.
What is this transformation?
(x, y) ----> (-x, y) 
a)
Reflect over the x axis
b)
Reflect over the y-axis
c)
Slide down 1
d)
slide left 1
54.
Reflect the point (2, -4) over the y-axis.
a)
(-4, 2)
b)
(-2, 4)
c)
(-2, -4)
d)
(2, 4)
55.
What is the algebraic notation of a figure is Translated 6 units right and 5 units up?
a)
(x, y) --> (x - 6, y + 5)
b)
(x, y) --> (x + 6, y + 5)
c)
(x, y) --> (x + 5, y - 6)
d)
(x, y) --> (6x, 5y)
56.
How is triangle ABC being translated to triangle A'B'C'?
a)
up 3, left 8
b)
up 9, left 4
c)
down 3, right 8
d)
down 9, right 4
57.
What transformation is happening?
(x, y) ----> (x + 2, y - 3) 
a)
slide up 2, left 3
b)
slide right 2, up 3
c)
slide right 2, down 3
d)
slide left 3, right 2
58.

This point is translated 4 left and 4 up. Which diagram shows the new position of the point?

a)
b)
c)
d)
59.
Choose the correct scale factor:
a)
2
b)
3
c)
1/3
d)
1/2
60.
A rectangle has an area of 48 cm2. It is dilated by a scale factor of 2. What would be the area of the new rectangle (the image)?
a)
96 cm2
b)
192 cm2
c)
216 cm2
d)
2304 cm2
61.
If a shape is dilated by a scale factor of 1/2, what is the resulting perimeter? 
a)
The new perimeter is 1/2 the original
b)
The new perimeter is 2 times the original
c)
The new perimeter is 1/4 the original 
d)
The new perimeter is 4 times the original
62.
What is the formula that compares the areas of the image and preimage?
a)
A' = A x sf
b)
A = A' x sf
c)
A' = A x sf2
d)
A = bh
63.
What is the formula that compares the perimeter of the image with the perimeter of the preimage?
a)
P' = P x sf
b)
P = P' x sf
c)
P = 2l + 2w
d)
P' = l + w