Quiz about Chapter 9 Geometry Review

Question 1

What is the procedure for a 180 rotation ?

Accepted Answer

(X,Y) -> (-X,-Y)

Answer

(X,Y) -> (-Y, X)

Answer

(X,Y) -> (Y, -X)

Question 2

A 90 degree counterclockwise rotation is a ____ clockwise rotation

Accepted Answer

270

Answer

90

Answer

180

Answer

120

Question 3

Ellie enlarged a 4-inch by 6-inch photograph by a factor of 5/2. What are the dimensions of the photograph.

Accepted Answer

10-inch by 15-inch

Answer

7 inch by 5 inch

Answer

5 inch by 2 inch

Answer

5 inch by 3 inch

Question 4

How do you find the coordinates of an image after dilation?

Accepted Answer

Multiply by the scale factor

Answer

Multiply by 2

Answer

Multiply by the reciprocal

Answer

Divide by 1

Question 5

What is R in a dilation problem

Accepted Answer

The scale factor

Answer

The coordinates

Answer

The dimensions

Answer

The area

Question 6

If an object on a graph was rotated 180 counterclockwise about the origin, its points would go from (X,Y) -> (?,?)

Accepted Answer

(-X, -Y)

Answer

(-Y, -X)

Answer

(-Y,X)

Answer

(Y,-X)

Question 7

If r=1/2 will the image be larger or smaller after a dilation?

Accepted Answer

Smaller

Answer

Neither

Answer

Larger

Answer

Stays the same

Question 8

A dilation is a similarity transformation that __________ a figure proportionally.

Accepted Answer

Enlarges or reduces

Answer

Reflects

Answer

Flips

Answer

Translates

Question 9

What kind of rotation is this? (4,3) -> (3,-4)

Accepted Answer

270 degrees counter-clockwise

Answer

180 degrees counter-clockwise

Answer

180 degrees clockwise

Answer

90 degrees counter-clockwise

Question 10

Point L (-2,3) reflected in the x-axis

Accepted Answer

(-2,-3)

Answer

(2,3)

Answer

(-2,3)

Answer

(3,-2)

Question 11

Find the measure of ST if ST=4 under a dilation with a scale factor of 3/4.

Accepted Answer

3

Answer

4

Answer

3.2

Answer

5

Question 12

What are the new points of W(-3,-8) X-6,3) Y(0,3) Z(3,0)

Accepted Answer

W(1,-3) X9-2,8) Y(4,8) Z(7,5)

Answer

W(-12,-40) X(-24,15) Y(0,15) Z(12,0)

Answer

W(3,8) X(6,3) Y(0,3) Z(3,0)

Answer

W(8,3) X(3,6) Y(3,0) Z(0,3)

Question 13

What are the new points of A(2,5) B(7,1) C(-1,2) translated (-1,2)

Accepted Answer

A(1,3) B(6,1) C(-2,0)

Answer

A(-2,-10) B(-7,-2) C(1,-4)

Answer

A(-2,-5) B(-7,1) C(1,2)

Answer

A(5,2) B(1,7) C(2,-1)

Question 14

Point A ( -3, 2) reflected in the line y=x

Accepted Answer

(2,-3)

Answer

(-2,3)

Answer

(3,2)

Answer

(-2,-3)

Question 15

Given the point and it's image, determine the scale factor. A (3, 6) A' (4.5, 9)

Accepted Answer

1.5

Answer

2

Answer

4.5

Answer

9

Question 16

Point D (0,-3) reflected in the y-axis

Accepted Answer

(0,-3)

Answer

(3,0)

Answer

(-3,0)

Answer

(0,3)

Question 17

Sally enlarged a 4-inch by 6-inch photo by a scale factor of 5/2. What are the new dimensions of the photo?

Accepted Answer

10-inch by 15-inch

Answer

9-inch by 8-inch

Answer

4-inch by 10-inch

Answer

8-inch by 20-inch

Question 18

What are the new points of Q(1,6) R(4,5) S(1,-1) T(-2,0)

Accepted Answer

Q(4,4) R(7,3) S(4,-3) T(1,-2)

Answer

Q(6,1) R(5,3) S(-1,1) T(0,-2)

Answer

Q(-1,-6) R(-4,-5) S(-1,1) T(2,0)

Answer

Q(3,-12) R(12,-10) S(3,2) T(-6,0)

Question 19

A _________ is a similarity transformation that enlarges or reduces a figure proportionally

Accepted Answer

Dilation

Answer

Reflection

Answer

Rotation

Answer

Translation

Question 20

Point U (-2,-4) reflected in the x- axis

Accepted Answer

(-2,4)

Answer

(4,2)

Answer

(2,4)

Answer

(-2,-4)

Question 21

If line ST=4 cm, what is the measure of ST under a dilation with a scale factor of 3/4?

Accepted Answer

3 cm

Answer

4/3 cm

Answer

4 cm

Answer

12 cm

Question 22

Given the coordinates of the triangle, determine the coordinates of its image after a dilation with the given scale factor centered at the origin. A (0,3) B (6,0) C (0,-3) scale factor= 1/3

Accepted Answer

A' (0,1) B' (2,0) C' (0,-1)

Answer

A' (1,6) B' (7,3) C' (1,0)

Answer

A' (0,-1) B' (2,0) C' (0,1)

Answer

A' (3,4) B' (5,1) C' (3,2)

Question 23

What are the new points of X(6,5) Y(7,-4) Z(5,-5) translated(2,0)

Accepted Answer

X(5,8) Y(-4,9) Z(-5,7)

Answer

X(12,0) Y(14,0) Z(10,0)

Answer

X(-6,5) Y(-7,4) Z(-5,5)

Answer

X(5,6) Y(-4,7) Z(-5,5)

Question 24

Point F (-3,3) reflected on the y-axis

Accepted Answer

(-3,3)

Answer

(3,3)

Answer

(3,-3)

Answer

(-3,-3)

Question 25

If CD=10 and C'D'=5, is the dilation an enlargement or reduction?

Accepted Answer

Reduction

Answer

Enlargement

Answer

Not enough information

Answer

No answer

Question 26

What is a rotation?

Accepted Answer

Transformation turning every point of a pre image through a specified angle and direction

Answer

Transformation over the y axis

Answer

Transformation over the x axis

Answer

Number of degrees of a rotation

Question 27

Find the measure of the image of AB is AB=4 under a dilation with a scale factor of 3/4.

Accepted Answer

3

Answer

2.25

Answer

5.3

Answer

0.75

Question 28

Given the points and its image, determine the scale factor.

Accepted Answer

R=1.5

Answer

R=3

Answer

R=0

Answer

R=2.5

Question 29

What are the new points of T(6,-3) U(8,-5) V(7,-7)

Accepted Answer

T(2,0) U(4,-2) V(3,-4)

Answer

T(-3,6) U(-5,8) V(-7,7)

Answer

T(-24,-9) U(-32,15) V(-28,-21)

Answer

T(-6,3) U(-8,5) V(-7,7)

Question 30

What is the center of rotation?

Accepted Answer

Fixed point where the rotation occurs

Answer

On the y axis

Answer

Number of degrees of a rotation

Answer

A given rotation

Question 31

What variable(s) represent scale factor?

Accepted Answer

r

Answer

sf

Answer

A

Answer

b

Question 32

What is the rule for a 90 degree angle rotation counter clockwise about the origin?

Accepted Answer

(-y, x)

Answer

(-x, -y)

Answer

(Y, -x)

Answer

(X, -y)

Question 33

What is the rule for a 270 degree angle rotation counter clockwise about the origin?

Accepted Answer

(Y, -x)

Answer

(X, -y)

Answer

(-y, x)

Answer

(-x, -y)

Question 34

What do you need in order to rotate figure?

Accepted Answer

Center of rotation, angle of rotation, and direction

Answer

Center of rotation

Answer

Angle of rotation

Answer

90 degree angle

Question 35

To reflect (x,y) to the y-axis, what do you do?

Accepted Answer

Multiply the x coordinate by -1

Answer

Switch the x and y coordinates

Answer

Multiply the y-coordinate by -1

Answer

Multiply both coordinates by -1

Question 36

What will be the position of the points (-3,5) after a reflection across the y axis

Accepted Answer

(3,5)

Answer

(-3,-5)

Answer

(3,-5)

Answer

(-3,5)

Question 37

Triangle ABC has vertices A(2, 4), B(-4, -1), C(2, -4), what is the A coordinate reflected in the line y=x?

Accepted Answer

(4, 2)

Answer

(-2,-4)

Answer

(4, -2)

Answer

(2-4)

Question 38

What will be the position of the points -6,-5 after a reflection across the x axis

Accepted Answer

6, -5

Answer

6,5

Answer

-5,-6

Answer

-6,5

Question 39

What will be the position of the points 9,2 after a reflect in the line y=x

Accepted Answer

2,9

Answer

-9,2

Answer

-9,-2

Answer

9,-2

Question 40

What will be the new position of the given points 9,-4 after a reflection across the line x=1

Accepted Answer

7,-4

Answer

4,7

Answer

-4,9

Answer

-7,-4

Question 41

What will be the new position of the points 6,4 after a reflection across the line y=1

Accepted Answer

6,2

Answer

4,6

Answer

4,2

Answer

4,4

Question 42

Quadrilateral DEFG has verticies D(6, 7), E(-4, -2) F(5, -5), G(9, -2). What are the coordinates of the quadrilateral reflected over the x- axis?

Accepted Answer

D(6, -7), E(-4, 2) F(5, 5), G(9, 2)

Answer

D(-6, -7), E(-4, -2) F(-5, -5), G(-9, -2)

Answer

D(6, 7), E(4, 2) F(5, 5), G(9, 2)

Answer

D(-6, 7), E(4, -2) F(-5, -5), G(-9, -2)

Question 43

What is the name of a figure before reflection?

Accepted Answer

Pre-Image

Answer

Image

Answer

Image no. 1

Answer

Figure no. 1

Question 44

To reflect (x,y) to the x-axis, what do you do?

Accepted Answer

Multiply the y-coordinate by -1

Answer

Multiply the x-coordinate by -1

Answer

Multiply both coordinates by -1

Answer

Switch the x and y coordinates

Question 45

If coordinates (-2,-2)(-2,4)(2,4)(2,-2) are dilated to (-1,-1)(-1,2)(1,2)(1,-1), what is the dilation

Accepted Answer

0.5

Answer

-0.5

Answer

1.5

Answer

2

Question 46

If coordinates (2,2)(3,4)(5,2) are dilated by 2.5, what is the outcome

Accepted Answer

(5,5)(7.5,10)(12.5,5)

Answer

(5,5)(7.5,10)(12.5,-5)

Answer

(5.2,5.2)(7.8,10.4)(13,5.2)

Answer

(6,6)(9,12)(15,6)

Question 47

What is the vector of point R(4,3) has translated to R(5,7)

Accepted Answer

(1,4)

Answer

(1,2)

Answer

(2,1)

Answer

(4,1)

Question 48

If graphed along a vector of (8,4), point N (3,6) would become what?

Accepted Answer

(11,10)

Answer

(11,9)

Answer

(5,-2)

Answer

(3,-2)

Question 49

If square REBD is translated along a vector of (2,0) it would

Accepted Answer

transfer 2 units to the right

Answer

transfer 2 units to the left

Answer

transfer 2 units up

Answer

transfer 2 units down

Question 50

For a square to translate 2 units down, te vector must be...

Accepted Answer

(0,-2)

Answer

(-2,0)

Answer

(2,-2)

Answer

(0,0)

Question 51

What would point K(1,2) become if translated by a vector of (3,2)

Accepted Answer

(4,4)

Answer

(3,6)

Answer

(2,1)

Answer

(1,4)

Question 52

What is done to a coordinate when it is rotated 90*?

Accepted Answer

(x,y)->(-y,x)

Answer

(x,y)->(-x,y)

Answer

(x,y)->(-x,-y)

Answer

(x,y)->(y,x)

Question 53

What will happen to a figure with a dilation of 2?

Accepted Answer

It will get bigger

Answer

It will get smaller

Answer

It will stay the same

Answer

It will get bigger by one

Question 54

What is done to coordinates when they are reflected over the y-axis

Accepted Answer

(x,y)->(-x,y)

Answer

(x,y)->(x,-y)

Answer

(x,y)->(y,x)

Answer

(x,y)->(-y,x)

Question 55

Determine if the following scale factor would create an enlargement or reduction. 2/5

Accepted Answer

Reduction

Answer

Enlargement

Answer

Not enough information

Answer

No answer

Question 56

Reflect over the line Y = X

Accepted Answer

( x , y ) - ( y , x )

Answer

( -x , -y ) - ( -y , -x )

Answer

( x , y ) - ( -x , y )

Answer

( y , x ) - ( x , y )

Question 57

Square ABCD has the coordinates A(2,4) and C (2,0), what would be the coordinates if A and C were flipped across the Y-Axis to make a square?

Accepted Answer

B(-2,4) D(-2,0)

Answer

B(2,-4) D(2,0)

Answer

B(-2,-4) D(0,-2)

Answer

B(-2,4) D(2,0)

Question 58

Rotate the figure 180 degrees

Accepted Answer

( x , y ) - ( -x , -y )

Answer

( x , y ) - ( -y , -x )

Answer

( x , y ) - ( y , x )

Answer

( x , y ) - ( x , -y )

Question 59

Triangle ABC with vertices A(-4,-4), B(-1,-2), C(3,1) is rotated 180 degrees about the origin. What are the new coordinates?

Accepted Answer

A(4,4) B(1,2) C(-3,1)

Answer

A(4,4) B(-1,-2) C(3,-1)

Answer

A(-4,4) B(1,2) C(-3,-1)

Answer

A(4,4) B(1,-2) C(3,1)

Question 60

Rotate the figure counterclockwise 90 degrees

Accepted Answer

( x , y ) - ( -y , x )

Answer

( x , y ) - ( -y , -x )

Answer

( x , y ) - ( y , x )

Answer

( x , y ) - ( y , -x )

Question 61

If ( 8 , -5 ) was rotated 180 degrees, what would be the new coordinates?

Accepted Answer

( -8 , 5 )

Answer

( 8 , 5 )

Answer

( -8 , -5 )

Answer

( 5 , -8 )

Question 62

Reflect the points (1,3)(4,4)(12,0) over the y axis

Accepted Answer

(-1,3)(-4,4)(-12,0)

Answer

(3,1)(4,4)(12,0)

Answer

(-1,3)(4,4)(12,0)

Answer

(-3,1)(-4,4)(0,12)

Question 63

Reflect the points (-1,3)(4,-4)(-12,0) over the line y=x

Accepted Answer

(3,-1)(4,-4)(0,-12)

Answer

(1,3)(4,4)(12,0)

Answer

(-1,3)(4,4)(0,12)

Answer

(3,1)(4,4)(0,12)

Question 64

Translate the point (1,3) across (-2,-2)

Accepted Answer

(-1,1)

Answer

(1,-1)

Answer

(3,5)

Answer

(5,3)

Chapter 9 Geometry Review

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