Day 8 HW - Rotation Around a Point Not the Origin

[@birdie7344]

you don't know how much this means to me...i was going through a mental breakdown on math...watched over 7 to 8 videos but didn't understand, but you made me understand! I am so grateful i came across your channel, just subbed, please keep making these video, thank you! :)

[@MrHelpfulNotHurtful]

This post makes me so glad! I will keep making videos. I’ve got your back. 😎

[@Yang11]

So helpful

[@elizabethlius2633]

I truly thank you so much!! My kid came to me with her confusion last night and we ended up with more confusion after watching several videos 😂 but after watching your video, I am confident to teach her tonight 💪

[@MrHelpfulNotHurtful]

I’m so glad glad I could help out. Good luck!🍀

[@perpetualquaye1080]

Wonderful! Just wonderful ♥️

[@MrHelpfulNotHurtful]

Yay! I really appreciate your feedback. 😊

[@dr3gon_g3mez]

Bro this guy teaches better than 99 percent of teachers 🤩

[@dasupremehusky]

This was a lifesaver. Thanks!

[@MrHelpfulNotHurtful]

You are so welcome 😊

[@financialservicesprofessio7377]

Great video! I just learned this to help my son with homework. Thank you very much!!!

[@MrHelpfulNotHurtful]

I’m so glad I was able to help! 😊

[@arunamasoorkar7278]

Rotate from specific point so first 1) subtract that point from all other given points. then 2) rotate, then 3) add same point. Original points are : (2, -2)(3, -3) (1, -5) Rotate 180 degree from ( -1, -1) So, Rule 1) subtract -(-1, -1) from all three numbers. new points will be (3, -1) (4, -2) (2, -4). Rule 2) rotate 180 degree so from Q IV to Q II, point will be be the same x, y , but x will become negative (-3, 1) (-4, 2) (-2, 4) Rule 3) add +(-1, -1) to all three points so new points (-4, 0) (-5, 1) (-3, 3). Since it says Rotate so do only clock wise. Hope this will help you. Good luck!!! Namo Buddhaya Jai Bheem!!!

[@MrHelpfulNotHurtful]

Thanks! 😊

[@Bread953._.]

Thank you so much! I didn't understand it before I watched the video ❤

[@MrHelpfulNotHurtful]

So glad I could help, Amber. 😊

[@lilygriffiths5430]

I can't thank you enough for this! All the other videos were hard to understand but you made it really easy as I'd never thought of doing it this way before. Let's hope I pass this test >:p

[@MrHelpfulNotHurtful]

I got your back! Good luck on the test! 🍀

[@whoisaleah7384]

thank you so much for explaining this very well, i was confused, but this helped me understand the concept of rotations

[@MrHelpfulNotHurtful]

@@whoisaleah7384 Yay! I’m so glad I could help. 😊

[@preethi_s_w]

Very very good explanation. Thank you a ton

[@MrHelpfulNotHurtful]

@@preethi_s_w You are super welcome. 😊

[@champikawasgewatte9312]

Best explain & easiest method for teach studenta... Thanks sir..

[@MrHelpfulNotHurtful]

You are super welcome!

[@crispinkawana6382]

Thank you sir,

[@MrHelpfulNotHurtful]

You are very welcome. 😊

[@crispinkawana6382]

Finally my fear's ended!

[@financialservicesprofessio7377]

Would it be out of the question to ask for downloadable questions you used in this video? I am looking for comparable materials, but have not yet found them. I would like your help with a pdf download of the Qs. Sincerely, M

[@financialservicesprofessio7377]

@@MrHelpfulNotHurtful I won't mind paying for the materials. Is there a way to make a purchase? This is the easiest to understand and clearest explanation I have found.

[@MrHelpfulNotHurtful]

After I finish grading papers today I will search through some files. If I can find them I will post them on Patreon. You will be able to gain access by subscribing for one month for $5. I will let you know what I find. 😎

[@MrHelpfulNotHurtful]

@@financialservicesprofessio7377 I found the original document and uploaded it to Patreon. Please support me on Patreon by donating $4 or whatever you think is fair. Let me know if there are more documents that you would like me to post. www.patreon.com/posts/geometry-unit-1-89063874?Link&

[@ScrassVFX]

Really helpful video 👏

[@MrHelpfulNotHurtful]

Yay! I appreciate your feedback. 😎

[@JuanDavidVictoria1]

Easiest explanation!, great video, thanks!

[@MrHelpfulNotHurtful]

You are very welcome. I appreciate the feedback. 😊

[@9791Mars]

Thank you so much ❤

[@MrHelpfulNotHurtful]

@@9791Mars You are super welcome! 😊

[@haadikhansuryani]

Thanks a lot, What if it’s 180 degrees and not 90?

[@MrHelpfulNotHurtful]

That’s #4.

[@desimunda8741]

Excellent💯💯👏

[@MrHelpfulNotHurtful]

Yay. I’m so glad you liked it. 😊

[@ap3xmath123]

Awesome you made you made it simple

[@MrHelpfulNotHurtful]

Yay! So glad I could help. 😊

[@ranarabbani8584]

Hi, your video has shown me as a teacher how can teach this in differentiating the lesson. I wanted to know if you have a pdf for this available so I can use the same example with my students. Thanks a million.

[@MrHelpfulNotHurtful]

Sharing files is a service that I offer to my Patreon subscribers. patreon.com/MrHelpfulNotHurtful Join with a $5 donation and then request the file. I will post the file for you on Patreon so you can download it.

[@kumarkailasanathan961]

Excellent.

[@MrHelpfulNotHurtful]

Yay! I appreciate your feedback. 😊

[@financialservicesprofessio7377]

Thank you very much!

[@appxan9000]

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[@MrHelpfulNotHurtful]

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[@HsuanYuCheng]

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[@MrHelpfulNotHurtful]

Yay!! You made my day. 😎

[@alexanderkorfiatis2410]

Excellent !!!!

[@MrHelpfulNotHurtful]

Yay! I appreciate the feedback. 😊

[@pyaepyae1411]

Thanks❤ I know clearly ❤

[@MrHelpfulNotHurtful]

You are quite welcome. 😊

[@icecreamman3545]

Tysm this really helped me, i used to know how to do this but totally forgot with a test in 2 days😅

[@MrHelpfulNotHurtful]

I got you! 😎

[@wasakayat]

finally found the right video!! tysm

[@MrHelpfulNotHurtful]

Yay! I got you. 😎

[@mariagoncalves623]

Thank you!

[@shaymaasabry911]

Thank you for helping me

[@MrHelpfulNotHurtful]

You are very welcome. 😊

[@annieyang6395]

Thank you so much this video made me understand

[@MrHelpfulNotHurtful]

You are so welcome 😊

[@halo526]

USTAJIIIII LOVE U HOGYA

[@that_animefreak221]

Thank you thank you thank you!!!!

[@makindeoluwaseun6716]

Are u not supposed to add the (1,1) back in the second question

[@MrHelpfulNotHurtful]

The graph is accurate the way I did it. You would only take the extra step of subtracting the (1,1) at the end if you wanted to list out the coordinates of the vertices of your final answer. Of course you could also get those vertices from the graph. In fact, that’s a way to check your answer. Subtract (1,1) from the green coordinates I had and see if you get the actual coordinates of the final triangle.

[@nicolewarkentin606]

can you explain what the other "rules" are for rotations?

[@MrHelpfulNotHurtful]

There are no other rotation rules that I know of besides the three covered in this video. 90 degrees clockwise, 90 degrees counterclockwise and 180 degrees. If you see 270 degrees clockwise, that’s the same as 90 degrees counterclockwise. If you see 270 counterclockwise, that’s the same as 90 degrees clockwise. 😎

[@Yang11]

I have paid £xx to the tutor to explain this to my daughter ，she didn’t get it, even cry, Today she spend half an hour on this video, and complete understand it ,thank you so much.

[@ahhhhhh387]

@@MrHelpfulNotHurtful what about 180 counterclockwise

[@MrHelpfulNotHurtful]

@@ahhhhhh387 180 degrees clockwise will result in the same image as 180 degrees counterclockwise so the rule is the same for both (-x, -y).

[@있지의]

U really save my exam

[@MrHelpfulNotHurtful]

Yay! I’m so glad I could help. 😊

[@Husnakhan-o9p]

Wow amazing teachers ❤

[@MrHelpfulNotHurtful]

❤️🥰❤️

[@TandiweBeta-lq1nh]

Very helpful, thank you

[@MrHelpfulNotHurtful]

You are super welcome. Glad I could help. 😊

[@halo526]

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[@MrHelpfulNotHurtful]

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[@halo526]

@@MrHelpfulNotHurtful I WAS LITERALLY STUCK ON THIS AND I HAVE AN EXAM TOMORROW, YOU HELPED ME SOO MUCH

[@MrHelpfulNotHurtful]

@@halo526 yay!!!! I’m so glad. Let’s gooooo

[@rena9149]

Your method is not completely accurate. I was looking at your video, and although your first few steps are correct, you forgot to add one more essential step. You were correct about this: 1) Identifying the center of dilation and plotting it on the graph 2) Changing the x and y axis so the center of dilation could be (0, 0) aka the origin. 3) Finding your new coordinates with your "new" x and y axis (You don't have to graph a new x and y axis just to make the center of dilation the origin. A simpler way of doing this is by finding the opposite value for both the x and y coordinate of the center of dilation and adding/subtracting the opposite values to the original shape's coordinates. For example, if your original shape's coordinates were (1,1) (2,2) and (3,3) and your center of dilation was (-1, -1), I would first add the opposite value of the X coordinate of the center of dilation to each X coordinate of the original shape, so it would be (1(+1),1) (2(+1),2) and (3(+1),3). Then, since the opposite value of the Y coordinate of the center of dilation is 1, I would do the same for the y coordinate and add 1 to each y coordinate of the original shape.) 4) Based on whether the problem wants you to rotate counterclockwise/clockwise and how many degrees the problem wants you to rotate your shape, find the rule and apply it to your shape's coordinates that was added/subtracted by the opposite values of the x and y coordinate of the center of dilation). For example, after completing step three, my new coordinates would be (2, 2) (3, 3) and (4, 4). If the problem said to do a 90° clockwise rotation, since the rule is (x, y) --> (y, -x), I would do (2, 2) --> (2, -2) (3, 3) --> (3, -3) (4, 4) --> (4, -4) to find the new coordinates. Here are some of the rules: 90° clockwise/270° counterclockwise rotation: (x, y) --> (y, -x) 180° clockwise/counterclockwise rotation: (x, y) --> (-x, -y) 270 clockwise/90° counterclockwise rotation: (x, y) --> (-y, x) 360° clockwise/counterclockwise rotation: (x, y) --> (x, y) Now, you just ended there. However, there is one more important step: 5) With my new coordinates, (2, -2) (3, -3) and (4, -4), you must add the values of the x and y coordinate of the center of dilation BACK to the new coordinates. For example, since my center of dilation was (-1, -1), I would do this: (2(-1), -2(-1)) is (1, -3) (3(-1), -3(-1)) is (2, -4) (4(-1), -4(-1)) is (3, -5) The new coordinates above are the *correct* coordinates for your rotated shape. I apologize for this long list. Your answers for some of geometric problems were incorrect. The reason I wrote this was because I kept getting incorrect answers with your steps since you accidentally forgot the final step. Thank you for your insightful video, and have a nice day.

[@MrHelpfulNotHurtful]

Wow. That was an amazing explanation! Sounds like you should make a video. I would definitely watch it. I will have to sit down and contemplate your method to full understand it. Thank you for showing me the right way. 😎

[@AnuraagGoud9]

Thank you so much sir, very helpful ❤

[@MrHelpfulNotHurtful]

I’m so glad I got to help! 😊

[@piofmath6312]

Well explained sir👍

[@MrHelpfulNotHurtful]

I appreciate the feedback! 😎

[@caropapaulab1804]

Thank u Sir, well explained

[@sali1773]

Thank you

[@MrHelpfulNotHurtful]

You are quite welcome. 😊

[@mathsisapieceofcake6692]

great video. Thank you

[@MrHelpfulNotHurtful]

You are welcome. 😊

[@wiugbsdlvb8976]

Thanks. I understand now c:

[@MrHelpfulNotHurtful]

Awesome. Glad I could help. 😎

[@Dogeball]

tysm

[@MrHelpfulNotHurtful]

yw 😊

[@TomTom-zx7lo]

Problem 2 is wrong (your video thumbnail !!). You forgot to add the 1,1 back in. The question doesn't state to RESET the origin to 1,1, thus the origin is still 0,0. This should of been obvious as your video title states "Not the Origin". Correct... 1,1 is NOT the origin, origin is still 0,0, which is where the points B,R,W are derived from (it's asking to rotate around POINT 1,1, not origin 1,1).

[@MrHelpfulNotHurtful]

I propose a challenge. Perform rotation around the point (1,1) using the method of your choice and then tell me the coordinates of your answer. Then we will compare to the answer that I have graphed and we will see if the answers are different.

[@makindeoluwaseun6716]

I thought as much

[@PriyaKandula]

yes, you are correct 2nd problem is wrong - we need to add 1, 1 back then final value for R- (-2,0) but the rest of entire problem is correct given proper explanation

[@mariagoncalves623]

Thank you!

[@MrHelpfulNotHurtful]

You are super welcome! 😎