unit 1 extra practicehongmath.weebly.com/.../m8_unit_1_extra_practice.pdfMath 8 Unit 1 Extra Practice page 1 Math 8 – Unit 1 Extra Practice I can translate a figure on a coordinate

Name ____________________ Period _____

Math 8 Unit 1 Extra Practice page 1

Math 8 – Unit 1 Extra Practice I can translate a figure on a coordinate plane. Graph the image of the figure using the transformation given. Then give the coordinate of the new figure.

1. Translate 5 units right and 1 unit up G’ __________ T’ __________ B’ __________

2. Translate 1 unit left and 2 units up Y’ __________ G’ __________ M’ __________

3. Translate 3 units down Q’ __________ L’ __________ U’ __________

4. Translate 5 units right and 2 units up X’ __________ E’ __________ I’ __________

5. (x, y) è (x + 4, y – 4) J’ __________ I’ __________ A’ __________

6. (x, y) è (x + 2, y + 3) M’ __________ X’ __________ E’ __________ J’ __________

Original Score

Name ____________________ Period _____


Write a rule to describe each translation. 7. (x, y) è (x _____, y _____)

8. (x, y) è (x _____, y _____)

9. (x, y) è (x _____, y _____)

10. (x, y) è (x _____, y _____)

11. (x, y) è (x _____, y _____)

12. (x, y) è (x _____, y _____)

Name ____________________ Period _____


Math 8 – Unit 1 Extra Practice I can reflect a figure on a coordinate plane. Graph the image of the figure using the transformation given. Then give the coordinate of the new figure.

1. Reflect across 𝑦 = −2. I __________ Q __________

X __________

E __________

I’ __________

Q’ __________

X’ __________

E’ __________

2. Reflect across 𝑦 = 2. M __________

D __________

A __________

W __________

M’ __________ D’ __________

A’ __________

W’ __________

3. Reflect across 𝑥 = 1.

S __________ T __________

J __________

A __________

S’ __________

T’ __________

J’ __________

A’ __________

4. Reflect across 𝑥 = −1. W __________

L __________ B __________

I __________

W’ __________

L’ __________

B’ __________

I’ __________

5. Reflect across x-axis.

W __________

W’ _________

S __________

S’ __________

P __________

P’ __________

I __________

I’ __________

6. Reflect across y-axis.

H __________

H’ __________ L __________

L’ __________

P __________

P’ __________

Q __________

Q’ __________

Original Score

Name ____________________ Period _____


Write a rule to describe each translation. 7. Reflected across: _______________

8. Reflected across: _______________



Name ____________________ Period _____


Math 8 – Unit 1 Extra Practice I can rotate a figure on a coordinate plane. Graph the image of the figure using the transformation given. Then give the coordinate of the new figure.

1. Rotate 180 degrees about the origin P __________ K __________

N __________

F __________

P’ __________

K’ __________

N’ __________

F’ __________

2. Rotate 180 degrees about the origin

V __________ Y __________

R __________

J __________

V’ __________

Y’ __________

R’ __________

J’ __________

3. Rotate 90 degrees counterclockwise

B __________ X __________

N __________

B’ __________

X’ __________

N’ __________

4. Rotate 90 degrees clockwise

V __________ K __________

J __________

V’ __________

K’ __________

J’ __________

5. Rotate 270 degrees counterclockwise

K __________ B __________

U __________

Y __________

K’ __________

B’ __________

U’ __________

Y’ __________

6. Reflect across y-axis.

P __________

T __________ Q __________

K __________

P’ __________

T’ __________

Q’ __________

K’ __________

Original Score

Name ____________________ Period _____


Write a rule to describe each rotation. Be sure to include a degree measure and a direction. 7. Rotated _________________________ 8. Rotated _________________________ 9. Rotated _________________________

10. Rotated _________________________ 11. Rotated _________________________ 12. Rotated _________________________

Name ____________________ Period _____


Math 8 – Unit 1 Extra Practice I can dilate a figure on a coordinate plane. Point A is the vertex of a polygon. Point A’ is the image of A after a dilation. Find the scale factor of the dilation. 1. A (3, 4) and A’ (9, 12) Scale Factor: __________

2. A (1, 0) and A’ (4, 0) Scale Factor: __________

3. A (6, 2) and A’ (3, 1) Scale Factor: __________

4. An enlargement makes an image ( larger | smaller ) and the scale factor is ( larger | smaller ) than 1. 5. A reduction makes an image ( larger | smaller) and the scale factor is ( larger | smaller ) than 1. Determine whether the dilation from Figure A to Figure B is an enlargement or reduction. Then find its scale factor. 6. Enlargement or Reduction

Scale Factor: __________

7. Enlargement or Reduction






Original Score

Name ____________________ Period _____


Draw a dilation of the figure using the given scale factor. Give the coordinates of the pre-image and image. 10. 𝑘 = 2

A ________ B ________ C ________ A’ ________ B’ ________ C’ ________

11. 𝑘 = !!

A ________ B ________ C ________ A’ ________ B’ ________ C’ ________

12. 𝑘 = !!

A ________

B ________ C ________ D ________ A’ ________ B’ ________ C’ ________

D’ ________

13. 𝑘 = !!

A ________

B ________ C ________ D ________ A’ ________ B’ ________ C’ ________ D’ ________ 14. 𝑘 = 3

A ________ B ________ C ________ A’ ________ B’ ________ C’ ________ 15. 𝑘 = !

!

A ________ B ________ C ________ D ________ A’ ________ B’ ________ C’ ________ D’ ________

Name ____________________ Period _____


Math 8 – Unit 1 Extra Practice TWO-MOVE TRANSFORMATIONS Draw the new figures and list the new coordinates. 1. Move ∆𝐽𝐾𝐿 with the given transformations:

Rotate 90 degrees clockwise and reflect over the y-axis List coordinates of ∆𝐽!𝐾!𝐿′: List coordinates of ∆𝐽!′𝐾!!𝐿′′:

2. Move Quadrilateral 𝑃𝑀𝑁𝑄 with the given transformations:

Translate (x – 4, y – 5) and rotate 180 degrees List coordinates of 𝑃′𝑀′𝑁′𝑄′: List coordinates of 𝑃′′𝑀′′𝑁′′𝑄′′

Original Score

unit 1 extra practicehongmath.weebly.com/.../m8_unit_1_extra_practice.pdfMath 8 Unit 1 Extra Practice page 1 Math 8 – Unit 1 Extra Practice I can translate a figure on a coordinate

Documents