Math Corrections

Translation rotation and reflection change the sizes of the sides or angles of the original figure
the answer is true

Ordered pairs of data can be used to show a shape on a coordinates grid.
the answer is true.

which point on the coordinate grid has coordinates (-1,2)
the answer is is A.

In which quadrant is the point with coordinates. (11,-6)
the answer is D.

reflection

Refection is a mirror image in a line of reflection
Y-axis or X-axis is bieng a mirror.

correction for number 13

question A figure resulting from a transformation is called a ?

answer Prime

test corrections for question 8

to plot the ordered pair (0,5), you would move ,up 5

correction for number 22

The awnser to number 1

The question was 1.An image from a transformation cannot be congruent with the original figure .

First of all congruent means the same . So basically the question is can the transformed image be the same has the real image ?

Here is an image : You can see in this image the transformation is a reflection ( mirror image ).

Correction or number 15.

Question: A unit(n) ___________shows the distance and direction a figure has moved on a coordinate grid.

Answer Translation



http://www.youtube.com/watch?v=zB0bQZHOnu0




Hope this helps!.

Correction for Completion # 14

Question: For translations on a coordinate grid, you describe the movement along the ________ first.

Answer: x-axis


Image/Picture:



Video:

Correction For Number 5

__T_5. A coordinate grid has a following set of ordered pairs: (-2,-5), (0,-4), (3,0), (4,1), (5,2), (6,3). The point (0,-4) is out of place.

The answer is true because I discovered that all the points except (0,-4) lie on the same line when I connected them.

Here is a link to help you plot points

Correction to question 1

Question 1: An image from a transformation can not be congruent with the original figure:




answer: False, because the figure always stays the same.

well as you can see, the shape translated and the shape did not change into a different kind of shape.

here's a website where you can practice putting points on a grid

http://www.mathplayground.com/spaceboyrescue.html

Correction for number 7

Question:

From the origin,where would you move to plot the ordered pair (4,0)?

a)up 4 units c)left 4 units

b)right 4 units d)down 4 units

Answer:

The answer is: B right 4 units

I hope this things help you!

Correction for number 21

Describe the type of transformation needed in each of the following:

a) turning the knob to open the door - rotation

b) a bicycle chain moving- translation

c) a wheel turning- transformation

d) looking in to a mirror- reflection

Correction for number 11

Completion

Complete each statement.

Question: A line of reflection is also called a (n)

Answer: Mirror line.

Correction For #9

Question:Which point on the coordinate grid has coordinate (-1,2)

a)A

b)B

c)C

d)D

Answer: b)B

Correction for number 21

Question :

Describe the type of transformation needed in each of the following

D.) Looking into a mirror

Answer :

Reflection

Definition :

A reflection is a type of symmetry where one half is the reflection of the other half.

This is an example of a reflection.

This is a video of a reflection. ( i know this is long but this will help (: .)

Correction for number 12

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

For example:The rotation of a Ferris Wheel on it's fixed point in the middle.
You can also try this link.

Hope this helps.

Correction number 5

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

Answer : True ( 0,-4 ) is out of place because it does not join the diagonal line as you see. For

( 0,-4 ) to join the diagonal line it would have to be ( 0,-3 ).

<-----------------------------------------------

Hope this link helps you with ordered pairs and how u plot them !!!!! n_n

http://www.funbrain.com/co/index.html

SORRY I CAN'T UPLOAD A VIDEO IT DOESN'T WANT TO WORK !!!!!!!! n_n

Corrections to number 2

Indicate whether the statement is true or false.

Translations, rotations , and reflections change the size of the sides or angles of the orginal figure.

Answer: False

Explanation: Because you are only moving the original figure, by sliding it reflecting it or rotating it, but the figure stays the same.

Pictures of Translation , Reflection , and Rotation.

Corrections for Question 13

Question: A figure resulting from a transformation is called a(n)__________.

Answer: A figure resulting from a transformation is called a(n) image.




















Here is a picture that will give you a better understanding.

The Original copy is translated 10 units right then 2 units down. Then turns into an Image because it was transformed.


If you need practice on plotting points on a coordinate grid, visit this website to let you practice.

I hoped that helped you!

Corrections for number 10

In which quadrant is the point with coordinates (11,-6) ?

a.II c.III

b.II d.IV

Answer: d.IV (quadrant IV)

Corrections for number 15

A Translation arrow shows the distance and direction a figure has moved
on a coordinate grid.

Correction for Number 10

A coordinate grid is divided into four sections. Quadrant 1 is (+,+), quadrant 2 is (-,+), quadrant 3 is (-,-) and quadrant 4 is (+,-). For example the coordinates (-2, 3) would be in quadrant 2 because (-,+).

The question was in which quadrant is the point with coordinates (11,-6)?

The answer is quadrant 4 because (+,-).

Here is a link to help you plot points http://www.mathplayground.com/locate_aliens.html

Here is a video to help you understand more.

I hope all this information helps you understand more!

Correction for Number 12

The fixed point about which a rotation occurs is called the________.

Answer: centre of rotation

Here's an example of centre of rotation.

Try this link. This game will help you plotting coordinates. It is so fun!:

Test corrections for number 2

Translation, rotations, and reflections change the size of the sides or angles of the original figure. True or false? ... False Any transformation doesn't change the original shape for example:

even though you made a transformation the figure stays the same.

Correction for number 5

Indicate whether the statement is true or false.

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

Answer: True, the point (0, -4) is out of place.

As shown in the image.
<--------------------

Correction for Number 15

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



This is a example image of a Translation Arrow.

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p>

You can also try this link to learn more about coordinates.

This is a video of how to translate a shape.

I hope it helps you.

Math corrections for number 9

___9. Which point on the coordinate grid has he coordinates (-1,2)

a. A

b. B

c. C

d. D

It is letter b because it says (-1,2) right so you go 1 unit left from the origin on the x-axis. Then go up 2 units on the y-axis. It ends up in quadrant II.

Do this to help you learn about plotting points :D

Here is a video that might help you also it starts off with a number line that is half of the Cartesian plane then it will go to the coordinate grid and teach you about plotting points.

I hope this helps you (:

Correction for #11

Question : A line of reflection is called a(n) ______

Answer : Mirror Line

The Blue line is an example of A line of

reflection / Mirror Line

Correction on number 21

Describe letter a. type of transformation needed:

A.) turning a knob to a open door

The answer is Rotation.

The answer is because if you try to do it in real life, you will notice that the door knob will turn either counterclockwise or clockwise same as the rotation. The rotation will depend on the degrees it will rotate. It either rotate on 90, 180, 360 and etc.

Corrections for Number 5

A coordinate grid has the following set of ordered pairs: (-2,-5), (0,-4), (3,0), (4,1), (5,2), (6,3). The point (0,-4) is out of place. True or False?

True. All the ordered pairs are plotted straightly except for point (0,-4).

Here is a picture of a coordinate grid to help you.





This link will take you to a fun math site where you can practice plotting an ordered pair.
http://www.funbrain.com/co/index.html


Video of plotting an ordered pair.


I hope it helps you!

Test Correction For number 13

Draw the letter E on the grid. The letter must extend into all the 4 quadrants. Write the coordinates of the endpoints of each line segment.

Answers: Quadrant 1: (2,2)
Quadrant 2: (-2,2)
Quadrant 3: (-2,-2)
Quadrant 4: (2,-2)

Anywhere you would like. But each E must be in each quadrant like the picture there with the four E's.

Correction for number 10

Question: In which quadrant is the point with coordinates (11, -6)?

a.I

b.II

c.III

d.IV

Solution: Look at this coordinate grid:

-If you can see there is a line going up (Vertical) and going side (Horizontal).They are also called Y axis and X axis. Y axis is the line that goes up and it is always in the last when you write the coordinate of a point.

-While the side line (Vertical) or X Axis is the line that goes sideways and it is always in the first when you write the coordinate grid of a point.

-When plotting a points in a coordinate grid, always look for the number in the X axis, Vertical, Side line first and finally you should look again for the number that you're looking for in the Y axis, Horizontal, Up line.

-A coordinate grid is compose of 4 parts (Quadrant I, II, III, IV)

-In the middle of a coordinate grid there is a 0 there. 0 is either Positive or negative,It is also calles the origin

-So if we plot (11, -6) in a coordinate grid.Which Quadrant the point will plot?

Here's the answer:

Rotation

Rotations can be clockwise or counterclockwise. A rotation can be turned or rotated by degrees such as 90 degrees 180 and 360 degress. But every rotation has a centre of rotation. The centre of rotation is mostly located on the the origin.



The origin is located in the middle of the vertical and horizontal number line. You can also call it (0,0) in the coordinate grid.

Transformation

*TRANSFORMATIONS*

Moves a geometric figure (shape

3 types

Translation-

side along a strought line

transformations

Transformation

moves a geometric (figure) 3 types

translation slide along a strought line

How to do a reflection

The Cartesian Plane

The Cartesian Plane is a grid paper that can be used in math. It is good for all sorts of reasons, like it is good for figuring out where a dot or a fly can be. Which number is it lying on? Which quadrant is it on? You will learn it in the video you watch.



This is an example of a grid paper which is called a Cartesian Plane:

There are two long lines you should see on the grid. One of them is the one going from top to bottom. That is called The Vertical Line. The Vertical Line is called the Y-Axis on the Cartesian Plane. The other long line is going from left to right, that line is called The Horizontal Line. The Horizontal line is called the X-Axis on the Cartesian Plane.

In the middle of the Cartesian grid paper, it is called the Origin. The Origin would be the number (0,0). On the Horizontal Line and Vertical Line, you can see numbers on them, just like a number line.

Like for example, the dot would be on the Origin, move it to the left of the grid and add the dot on number -4. now the dot is on (-4,0). Move the dot again up 2, the dot will now be on (-4,2). Look at the Vertical line, the dot is on the number 2 on the vertical line, and the number -4 is on the horizontal line.










If you still have trouble with it, feel free to watch this video:

Creating a Scribepost

In the body we include text. This is where we send our message.



We can change the color.



We can change the size.



We can change the font.



We can make it bold.



We can add italics.



We can add a link.



We can add an image.

We can add a video.

You are done!