test corrections

tansformations with a slide a long strait line is a translation.
The fixed point about which in rotation occurs is called a transformation

A figure resulting from a transformation is called a rotation

Test corrections # 10

Look at the grid. What are the coordinates of each letter?

Answer: ( -4, 0 )

Here is an picture example of ( -4, 0 ):




Here is a video of placing a point on a coordinate grid:

Test Corrections for question 8

In which quadrant is the point with coordinates (3, 8)?


a)I b)II c)III d)IV
Answer: D (IV)

Here is an example of the quadrants:




















Here is a video about quadrants and coordinates:

Test Corrections for number 8

Question For Number 8:

In which quadrant is the point with coordinates (3,8)?

(a) 1 (b) 11

(c) 111 (d) 1v

Answer

(a) 1 because ...

Describing The Answer

Where (3,8) is on the coordinate grid:





You move 3 to the right on the x axis, then 8 units up, Then the Point should end up at Quadrant 1 .

Make sense ?

( sorry i didn't have a video )

Test Corrections #12

Question: The fixed point about which a rotation occurs is called the...

Answer: Center of Rotation.

Definition: Common centre of the arches of concentric circumferences around which all the wheels of a vehicle must rotate on a bend to prevent the tyres from sliding.

Here is an video example.

Here is an picture of rotation.

Test Corrections for Question 12

Question #12

Question: The fixed point about which a rotation occurs is called the______________?

Answer: Center of rotation

Here's a image:

Here is the link to learn more about rotations.

Test Corrections Question 5

True Or False

Question: A coordinate grid has the followung set in ordered pairs:(-2,-5),(0,-4),(3,0),(4,1),(5,2) ,(6,3). The point (0,4) is out of place

Answer:True

Sorry Cant find any video that fits this Question

Test correction for question 9

• 9. Which point on the coordinate grid has coordinates (-1,2) ?

• The answer is B on the paper , and its quadrant 2 on the coordinate grid.

• The way to get the answer is looking on the coordinate grid , See its asking you what point on the coordinate grid has the coordinates (-1,2) so you look and its in quadrant 2 because you look on the x-axis and that's were -1 is and you look on the y-axis and that's were 2 is

Test Corrections for Question 12

Question: The fixed point about which a rotation occurs is called the...

Answer: Center of Rotation

Click here to find out the definition of Center of Rotation.

This is an image of a Center of Rotation:

This is an example of a Center of Rotation:

Test Corrections for Question 13

Question: 21) Describe the type of transformation needed in each of the following

c) bicycle chain moving ____________

Answer: Translation

Here is a picture of a translation that I made...

Sorry there isn't a video, but click the link to watch it

Test Correction for question 21

Question: Turning the knob to open a door.

Anwser: Rotation.

Definition: A rotation is a movement of an object in a circular motion.


This is a vidoe of rotation


This is a picture of Rotation

Test Corrections #14

>Question number 14- For translations in a coordinate grid you describe the movement along the_____ first.

Answer: X-axis.

This is a picture explaining a shape translating itself along the x-axis. :

This is a video explaining how:

Test correction

CORRECTION

QUESTION:

9) Which point on the coordinate grid has coordinates (-1, 2)


a) A b) B

c) C d) D


THE ANSWER IS B

HERE IS A LINK TO HELP YOU : COORDINATE



Here is a video to help you :

Test corrections Question 15

A (n) translation arrow shows the distance and direction a figure has moved on a coordinate grid.

Video of translation arrow:

Test Corrections for Question 12

Question:The fixed point about which a rotation occurs is called the...
Answer: Center Of Rotation

Click here for the definition of Center Of Rotation.





This is an image of a center of rotation

This is an example of center of rotation (kinda)

math correction for question 21

Question: turning the knob to open the door

Answer: Rotation

video for the rotation:

A picture of a rotation:

Corrections for Question #14 October 18, 2010

Question:

For translations on a coordinate grid, you describe the movement along the _______ first.

My Definition: A translation is a slide along a straight line.

My Drawing of a transformation.

HERE IS A VIDEO! About translations.

Answer: X-axis

Test corrections for question 11

Question : A line of reflection is also called a ...

Answer: Mirror Line.

Here is the definition about question.

Video for Mirror Line.

Picture of an example of Line of Reflection, also known as Mirror Line.

Test correction for question 13

The question on number 13 is a figure resulting from a transformation is called an Image but i answered slide.