Chris Mann Omg... you DO NOT inderstand... our teacher is worse she just sits there and doesn't explain anything! Without those kinds of videos I would be...STUPID🙃 He explains better than my teacher even if the coordinates are wrong.
I have a test tomorrow which includes rotation and my teacher hasn't taught us how to do it without tracing paper so thank you so much! :) Edit 10 months later: I have another test tomorrow which apparently might include this (even though we still haven't been taught?) so I'm coming back here because I forgot how to do it, thank you
1 more way to do rotation without tracing paper. Reverse the vector of point A or any point from the centre. Like suppose A is (5, 4) points away from centre. Then 90° rotation will be (4, 5), from the centre. To determine which direction to go, then go left if anti-clockwise otherwise go right if clockwise.
grayblues you can’t rotate it if the center isn’t given . Another scenario is that the question will provide you a rotated shape at a given angle and you have to find the center
ERROR OBSERVED: (-1, 0) is the rotation point not (0, -1) as used here. You need to read off the x axis (-1) before the y axis (0) not the other way round. Could you edit please. Nice one👍
There is an easy way to do it without using compass. 1.Imagine the rotation point (0, -1) as an original point (0, 0) 2 (0, -1) + [0, 1] = (0, 0) 3. A(-6, 2) + [0, 1] = (-6, 3) 4 (-6, 3) clockwise original point 90 degree is (3, 6) 5 A' = (3, 6) - [0, 1] = (3, 5) Repeat the above steps 3, 4 and 5 to calculate the coordinates of B' and C'
I am studying for a test..
And this video helped me so much! Thank you! You are brilliant. Keep up the great work!
-Gisselle
I am so jealous of his students who have him as a teacher. He is a GENIUS!!! #bestteacherever
Jealous of a teacher who doesn't know coordinates.
xD rekt
Chris Mann Omg... you DO NOT inderstand... our teacher is worse she just sits there and doesn't explain anything! Without those kinds of videos I would be...STUPID🙃 He explains better than my teacher even if the coordinates are wrong.
the point (-1,0) should be on the X-axis
Yh thats wht is confusing me
Yes
Awkward... :-/
Obviously he meant (0, -1)...
No move on X(horizontally) and one down on Y (vertically).
No he's right? The first number is always x and the second is y
I've got a test literally tomorrow and I had doubts in rotation but they're all gone now . Keep up the good work
This is the best video ever.Thanks soo much i needed to learn rotation for my math exam.Thank you!
This was so helpful in solving all my doubts on rotation.
Thanks a ton man.
Keep up the good work
Without concerning the coordinates this video really helped me. Thank you very much. Keep it up.
Super useful video!
We rarely get this taught in the Uk. Thanks!!!!
You rotated about (0,-1) instead of (-1,0). Thanks nonetheless as this was really helpful.
If he did use that point, this method will be right anyways, so no worries
Wow 😮 Thank you so much for educating me with this! You explained so well.
what if it was anticlockwise? would you have to draw the right angle on the opposite side?
You would rotate the tracing paper anti clock wise
I have a test tomorrow which includes rotation and my teacher hasn't taught us how to do it without tracing paper so thank you so much! :)
Edit 10 months later: I have another test tomorrow which apparently might include this (even though we still haven't been taught?) so I'm coming back here because I forgot how to do it, thank you
how'd it go? :)
@@floraetta I don't remember this test at all lol but I think it went well thanks for asking :)
@@aurallistine good!!! love ur pfp btw
@@floraetta tysm love urs too, what anime/game is she from?
@@aurallistine mine is bandori / bang dream girls party!!
when will you drop the next video
Wrong coordinates but still helpful
1 more way to do rotation without tracing paper.
Reverse the vector of point A or any point from the centre. Like suppose A is (5, 4) points away from centre. Then 90° rotation will be (4, 5), from the centre. To determine which direction to go, then go left if anti-clockwise otherwise go right if clockwise.
That's what I was thinking lol. Do these methods only work for 90°?
easy to understand,thumbs up 👍👍👍
Thanks really helped for my exam!
oh my gawd you have just saved my assessment grades thank you soooo much >w
Nice Video However Its Quite Noticeable That The Coordinates Of Your ( -1 , 0 ) arent correctly pointed. Anyways Helped me!
it helped me in my boards !! thanbkyou
You are... a lifesaver. Fantastic - thanks so much
Really helpful Sir! May good things come your way!
Wrong coordinates, but thanks for the help. Really appreciate it
Spectacular!
Thank you! Very helpful!
Beautiful (sniff) (sniff).
what if I don't have a tracing paper and want to rotate 270
Thank you! It was of a real help!
i agree with david but the without tracing paper one is kinda hard to understand
amazing but i was confused when you were matching the lines of the image
what if the centre isnt given how do you find it
grayblues you can’t rotate it if the center isn’t given . Another scenario is that the question will provide you a rotated shape at a given angle and you have to find the center
AMAZING!!!
Thank you it was very helpful
Bangtan Trash OMG I FOUND AN ARMY 💕💕
Bts rocks
Thank you!
i understood perfectly
thank you so much
thank you sir!
Siti.N Halimah I still don't get bro
Can you demonstrate with an example plz
ERROR OBSERVED: (-1, 0) is the rotation point not (0, -1) as used here. You need to read off the x axis (-1) before the y axis (0) not the other way round. Could you edit please. Nice one👍
thank you for your helping
Your centre of coordinate is (-1,0), not (0, -1) . It has been wrongly located on the graph.
There is an easy way to do it without using compass.
1.Imagine the rotation point (0, -1) as an original point (0, 0)
2 (0, -1) + [0, 1] = (0, 0)
3. A(-6, 2) + [0, 1] = (-6, 3)
4 (-6, 3) clockwise original point 90 degree is (3, 6)
5 A' = (3, 6) - [0, 1] = (3, 5)
Repeat the above steps 3, 4 and 5 to calculate the coordinates of B' and C'
😀thanks for the help
Brilliant
Thanks,it is very useful
where are you, your are hidden gem, pls upload videos
got it straight away
tysm
You are my oprah
are you mr steel?
great
thx
Thanks
You are a genius.
Thanx so much usefull
Alright◉‿◉
this is just amazing! if you are a newbie at maths watch Newby's videos. #thatguyhasswag
Ryan Patel This video helped a lot. I agree that any student is lucky to have him!
Helps me every time
You’re literally using tracing paper ?
The point (-1,0) is wrong.
puik!
COE is 0,-1.
:)
😅😅
Who all from usgs
Jesus saves!! He is King
who asked
kek
me frfr
You told that you will not use tracing paper and you did it with tracing paper not that you waste my 6 min
Your coordinate is wrong.
Chris Mann so is your spelling
don't use this method kids , you'll be wasting too much time which you don't have in exams
there’s no regents but what even is tracing paper
then what method shall we use
@@mar-zc2fd without tracing paper . look it up
@@thegaz15 i looked it up thats how i got here lmao
@@pepsimann2038 Anil KUMAR
Wrong coordinates
First you learn coordinate geometry and then come to teach.
Cheater