Quiz about Review for 8th grade Illustrative Math End-Of-Unit #1 test

Question 1

What is the transformation from frame #1 to frame #2?

Accepted Answer

translation down

Answer

translation up

Answer

translation to the right

Answer

translation to the left

Question 2

What is the transformation from frame #3 to frame #4?

Accepted Answer

translation up

Answer

Rotation up

Answer

reflection up

Answer

translation down

Question 3

Segment AB corresponds to which segment on the right figure?

Accepted Answer

segment DE

Answer

segment DF

Answer

segment FE

Answer

segment ED

Question 4

This transformation shows what?

Accepted Answer

This is a translation of point "C" up 2 units and to the right 6 units.

Answer

This is a translation of point "A" up 2 units

Answer

This is a translation of point "B" to the right 6 units

Answer

This is reflection of point "A" over to point A prime

Question 5

What type of transformation is this figure?

Accepted Answer

This is a translation of point "A" up one unit and to the right two units.

Answer

This is a reflection up one unit and to the right two units.

Answer

This is a rotation of two units.

Answer

This is a rotation of two units clockwise.

Question 6

What type of transformation does this figure show?

Accepted Answer

This is a reflection over the line

Answer

This is a rotation over the line

Answer

This is a translation across the line

Answer

The line segments don't match so this is not a rigid transformation.

Question 7

This transformation is what?

Accepted Answer

This is a reflection.

Answer

This is a rotation.

Answer

This is a translation.

Answer

The figures are not the same shape so this is not a rigid transformation.

Question 8

What transformation or transformations moves the bird on the left to the bird on the right?

Accepted Answer

This is two transformations: a translation up, then a reflection across a vertical line.

Answer

This is just a reflection across a vertical line.

Answer

This is just a reflection across a horizontal line.

Answer

This is two transformations: a translation down, then a reflection across a vertical line.

Question 9

Select all of the translations that take Triangle T to Triangle U. There may be more than one correct answer.

Accepted Answer

Option A is correct

Accepted Answer

Option C is correct

Answer

B.

Answer

D.

Question 10

where does the point (1,2) go when reflected over the

x-axis?

Accepted Answer

(1,-2)

Answer

(1,2)

Answer

(-1,-2)

Answer

(-1,2)

Question 11

where does the point (1,2) go when reflected over the

y-axis?

Accepted Answer

(-1,2)

Answer

(1,2)

Answer

(-1,-2)

Answer

(1,-2)

Question 12

where does the point (1,2) go when rotated 90 degrees clockwise with center (0,0)?

Accepted Answer

(2,-1)

Answer

(2,1)

Answer

(-2,-1)

Answer

(-2,1)

Question 13

One of the triangles pictured is a rotation of triangle ABC and one of them is a reflection. Identify the rotation triangle and the center of rotation.

Accepted Answer

PQR with center at the origin (0,0)

Answer

XYZ with center at the origin (0,0)

Answer

PQR with center at the vertices "A"

Answer

XYZ with center at the vertices "B"

Question 14

One of the triangles pictured is a rotation of triangle ABC and one of them is a reflection. Identify the reflection triangle and the line of reflection.

Accepted Answer

XYZ is ABC reflected over the x axis

Answer

PQR is ABC reflected over the x axis

Answer

PQR is ABC reflected over the y axis

Answer

XYZ is ABC reflected over the y axis

Question 15

The point (-4,1) is rotated 180 degrees counterclockwise using center (-3,0). What are the coordinates of the image?

Accepted Answer

(-2,-1)

Answer

(-5,2)

Answer

(-4,-1)

Answer

(4,-1)

Question 16

What is the length of this segment to the nearest 0.1 of a unit?

Accepted Answer

4.7

Answer

4.5

Answer

5.4

Answer

4.2

Question 17

Here is a grid showing triangle ABC and two other triangles. You can use a rigid transformation to take triangle ABC to one of the other triangles. Which one? How?

Accepted Answer

Triangle CFG - Translate triangle ABC 7 units right so that "B" matches up with "F". Then rotate 90 degrees clockwise around "F".

Accepted Answer

Triangle CFG - Rotate triangle ABC 90 degrees counterclockwise around point "C", then rotate 180 degrees around the midpoint of segment CG.

Answer

Triangle EBD - ABC is reflected on a line at point "B"

Answer

Triangle EBD - Translate triangle ABC up two units.

Question 18

Lin says that she can map Polygon A to Polygon B using only reflections. Do you agree with Lin? If so, then how might it be done?

Accepted Answer

Yes I agree with Lin. First Polygon A is reflected over a vertical line that passes the right edge of "A" and the left edge of "B". Then that image is reflected over a horizontal line that passes the through the bottom of "A" and the top of "B". This will give the image of "B".

Answer

Yes I agree with Lin. Simply reflect "A" over an line between "A" and "B"

Answer

I do not agree with Lin. These are different sized images and so "A" cannot map to "B".

Question 19

Points A',B' , and C' are the images of 180-degree rotations of A, B, and C, respectively, around point O. Name a segment whose length is the same as segment AO.

Accepted Answer

A'O

Answer

CO

Answer

BO

Answer

C'O

Question 20

Describe a SINGLE rigid transformation that takes Triangle 1 to Triangle 2.

Accepted Answer

a 180-degree clockwise rotation using the midpoint of side AC as center

Accepted Answer

a 180-degree counterclockwise rotation using the midpoint of side AC as center

Answer

a 90-degree clockwise rotation around point "A".

Question 21

Choose all correct measurements

Accepted Answer

segment AE = 3.2 units

Accepted Answer

segment AD = 2.7 units

Answer

segment AD = 3.2 units

Answer

segment AE = 2.7 units

Question 22

Name the interior angles in this figure or give the angle measurement.

Accepted Answer

angles c, d, e, 60 degrees

Answer

angles a, b, c and d

Answer

angles a, b, f, g

Answer

angles e, f, g, 60 degrees

Question 23

Name all the alternate interior angles in this figure.

Accepted Answer

angles "d" and "b" also angles "a" and "g"

Answer

angles "d" and "a" also angles "b" and "g"

Answer

angles "e" and "g" also angles "d" and "f"

Review for 8th grade Illustrative Math End-Of-Unit #1 test

41 questions

What is the transformation from frame #1 to frame #2?

What is the transformation from frame #2 to frame #3?

What is the transformation from frame #3 to frame #4?

Answer the question in this figure.

This figure shows what transformation?

Segment AB corresponds to which segment on the right figure?

This diagram shows what type of transformation?

This diagram shows what transformation?

This transformation shows what?

What type of transformation is this figure?

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