Shortest Distance between a Point and Line - Equations of Lines

  Рет қаралды 181,739

mroldridge

mroldridge

9 жыл бұрын

Method 1: Use equations of lines
1. Find equation of second line (slope is negative reciprocal)
2. Find point of intersection
3. Use distance formula

Пікірлер: 156
@nylahandrews9098
@nylahandrews9098 6 жыл бұрын
to be honest you teach better than my teacher
@reginabarrios4890
@reginabarrios4890 5 жыл бұрын
sameee
@stoptrynakillme1952
@stoptrynakillme1952 5 жыл бұрын
fax
@ellena.n385
@ellena.n385 4 жыл бұрын
fax
@dressy421
@dressy421 2 жыл бұрын
To be honest nobody asked
@ayshaazami5431
@ayshaazami5431 2 жыл бұрын
@@dressy421 🤣🤣
@noscopegaming3286
@noscopegaming3286 5 жыл бұрын
who else cramming b4 test
@galacticblob6126
@galacticblob6126 4 жыл бұрын
learning the whole unit day before the test
@annacusson5537
@annacusson5537 4 жыл бұрын
im trying to learn this and my test is tmrw and now im more confused FML🤬😭
@i_rika1
@i_rika1 4 жыл бұрын
my test is starting after 20 min
@Cactusszss
@Cactusszss 4 жыл бұрын
im using this to take my test rn lol
@saiynman2126
@saiynman2126 3 жыл бұрын
Mines in 2 min lmao
@yvngrxxd9078
@yvngrxxd9078 2 жыл бұрын
I was so confused when my teacher explained this for 3 perioids, 7.5+ hrs, and your 7 minute video helped me understand tysm liked and subbed
@sundas2827
@sundas2827 9 жыл бұрын
Dude you are awesome that is exactly what i needed to see
@hamzabaig8856
@hamzabaig8856 2 жыл бұрын
You should have 1 million subs for the way you teach and when you give confidence to students by saying "I believe in you" ...end of video . THANKS 😇
@brookep17
@brookep17 3 жыл бұрын
This video was literally a life saver, you explain things so easily! Thanks so much!
@tiktokbyuukki3255
@tiktokbyuukki3255 3 жыл бұрын
ur such a good teacher u put a nice spin on normal teaching im suprised u dont have hundreds of thousands of subscribers really well done:)
@atep3254
@atep3254 6 ай бұрын
You probably don’t care much about doing this - but I can assure you that this is much appreciated ! It is very helpful. Thank you !!!
@mroldridge
@mroldridge 5 ай бұрын
I appreciate that!
@ibrahimm63
@ibrahimm63 3 жыл бұрын
thank you you the real GOAT. my garbage math teacher can't explain this even with 2 hours and 45 mins.
@nate6984
@nate6984 Жыл бұрын
This example is literally the test question thank you
@Rabbeck
@Rabbeck 4 жыл бұрын
Thank you so much, I was so confused about this but now I can somewhat do the quiz tomorrow!
@harveerhans5097
@harveerhans5097 8 жыл бұрын
Awesome way better than my teacher!
@tradingmyturtle2742
@tradingmyturtle2742 5 жыл бұрын
Why doesn't he care
@thsxn.n
@thsxn.n 6 жыл бұрын
Ohh... Wow!! This is so cool!! Now it's makes sense for me.Thank you so much!!!
@aboodmohgazy2668
@aboodmohgazy2668 7 жыл бұрын
very nice and useful.........
@B.N.010
@B.N.010 8 ай бұрын
Thank you sir🙏 i’ve been needing this
@wow1574
@wow1574 4 жыл бұрын
Thank you so much man you're so much better at teaching than my math teacher
@ernestorodriguez4937
@ernestorodriguez4937 7 жыл бұрын
thank you so much!!! I learned so much from this video. keep making awesome videos for us confused students. good luck!!
@gabrielgutierrez1042
@gabrielgutierrez1042 4 жыл бұрын
Clear and concise. Thank u!
@lebebeve4881
@lebebeve4881 7 жыл бұрын
You're better than my teacher. Thank you.
@gurmanj102
@gurmanj102 6 жыл бұрын
Thanks so much man, this is really helpful!
@stoptrynakillme1952
@stoptrynakillme1952 5 жыл бұрын
i have a test in literally like 30 minutes lol wish me luck i’ll come back and tell u guys how i did!
@divyoroy9056
@divyoroy9056 5 жыл бұрын
how did you do on the test
@matthewfleming3988
@matthewfleming3988 5 жыл бұрын
How was the test?
@benogden6483
@benogden6483 5 жыл бұрын
How’d you go
@limabean_4711
@limabean_4711 4 жыл бұрын
He lied to us...
@parkerbabin
@parkerbabin 4 жыл бұрын
StopTrynaKillMe how was your test 8 months ago
@suraphelendalu4070
@suraphelendalu4070 2 жыл бұрын
Thank u sir that is great and simple explanation
@emiliojr.cabandon6257
@emiliojr.cabandon6257 2 жыл бұрын
ABSOLUTELY CORRECT, BUT THAT IS THE LONGEST WAY TO DETERMINE THE SHORTEST DISTANCE FROM A POINT TO A LINE. HOWEVER, THAT COULD BE BETTER IF ONE HAS NO IDEA THAT A DISTANCE FORMULA FOR THIS SITUATION DO EXIST.
@katies8470
@katies8470 4 жыл бұрын
best tutorial by far 3: thanks, my test is tomorrow and im just learning this ouo
@chaojingcen8986
@chaojingcen8986 Жыл бұрын
You teach things so easily omg thank you so much for real
@dheyaamz5517
@dheyaamz5517 6 жыл бұрын
How can I find the distance between line and point in polar coordinate
@ndidar6702
@ndidar6702 6 жыл бұрын
This was very helpful thankss a lott ❤ I was doing one of my math questions along with u
@Sarah-iv3bl
@Sarah-iv3bl 4 жыл бұрын
amazing! saved me before a test!
@billcipher1702
@billcipher1702 4 ай бұрын
Isn't it possible to derive the equation for the point, (-4,2) and then solve the equations to find the points of intersection?
@huriaiqbal3395
@huriaiqbal3395 7 жыл бұрын
everything I try doesn't work. I need help. I thought it's a short cut for precalculus. I need help
@nf.nights455
@nf.nights455 7 жыл бұрын
How do you do the fractions?
@Danstry
@Danstry 2 жыл бұрын
Dude flexed his mental math skills so hard
@Itsmoef
@Itsmoef 7 жыл бұрын
Thanks man👌🏻👍🏻
@aidanwalpole2591
@aidanwalpole2591 5 жыл бұрын
ACTUALLY THANK YOU SO MUCH
@stellamonika1132
@stellamonika1132 2 жыл бұрын
in the second step, where does 32 come from?
@HighwayShooter101
@HighwayShooter101 7 жыл бұрын
I'm looking at this and I'm in college :(
@kingkrazypantz8934
@kingkrazypantz8934 7 жыл бұрын
im looking at this and im in 8th grade :I
@Klipicike
@Klipicike 7 жыл бұрын
piekyle27 same lol. grade 12 and looking at this since the 10th.
@AzeezAbass
@AzeezAbass 6 жыл бұрын
im in 1st year engineering 😂
@cristinakhatiwada
@cristinakhatiwada 5 жыл бұрын
I am 14 and in 9th grade
@divyoroy9056
@divyoroy9056 5 жыл бұрын
@@cristinakhatiwada I am 13 and in 8th grade
@mathewsgwaza3007
@mathewsgwaza3007 4 жыл бұрын
Nice 🙌🙌
@charlotteryann
@charlotteryann 3 жыл бұрын
This was so helpful thank you
@AbdulWahab-jf6iz
@AbdulWahab-jf6iz 4 жыл бұрын
Funny attitude all the idc and whatever however very useful and concise
@ahmedbaig7279
@ahmedbaig7279 5 жыл бұрын
You can draw a parallel lines to the perendicular right and left.This means another parallel line would be drwan to the line already existed. Then it is found that all of them except perpendicular would be hypoteneuse and certainly would be larger in length.
@chavasinyadalmasgulema885
@chavasinyadalmasgulema885 3 жыл бұрын
thank you it was of great help ❤👍👍👍👍
@immgoat3111
@immgoat3111 3 жыл бұрын
Yk the vibe online test rn need dis
@shishirholla2396
@shishirholla2396 6 жыл бұрын
tmrw i have xam and im here midnyt figuring dis out...... thankz fr making my job way lot easier😍😍😍😍😍
@imbo3272
@imbo3272 Жыл бұрын
What if the equation is ax+by+c=0?
@MoMo-pt1yh
@MoMo-pt1yh 5 жыл бұрын
Helped so much thanks
@jackolson7071
@jackolson7071 3 жыл бұрын
What if the equation is y^2 - x^4 - 4y + 2 = 0
@eyerusamber165
@eyerusamber165 3 жыл бұрын
Thank you this really helped
@mickbakema3520
@mickbakema3520 2 жыл бұрын
saved my brain thank you
@shayestahtarannum2795
@shayestahtarannum2795 2 жыл бұрын
Frm india.... Thanx so much
@flame5789
@flame5789 3 жыл бұрын
5:12 i wish, our teacher makes us remember about 5 equations each test
@vlvt-things
@vlvt-things 4 жыл бұрын
thank u i now found out how to find b of a formula after 3 years of highschool omg
@fallenwoo8334
@fallenwoo8334 2 жыл бұрын
good job 😍😍😍
@garretthartfelder1215
@garretthartfelder1215 5 жыл бұрын
Good video!
@Michal_Kedzierski
@Michal_Kedzierski 5 жыл бұрын
Looks so easy when you do, when I do it I get crazy numbers lol
@josefsanvictores2234
@josefsanvictores2234 5 жыл бұрын
This actually helped
@gcmrgcmr
@gcmrgcmr 3 жыл бұрын
its freaking clear even without your calcu
@aidan325
@aidan325 8 жыл бұрын
s/o this guy for Savin the day
@AbdulAhad-oq6lz
@AbdulAhad-oq6lz 5 жыл бұрын
thanks man
@EladAmon03
@EladAmon03 5 жыл бұрын
I feel less stupid now, thanks.
@youdontknowme8111
@youdontknowme8111 2 жыл бұрын
THANK YOU !!! :)
@berkayboyraz4268
@berkayboyraz4268 3 жыл бұрын
FOR FUCK SAKES HOW DAFUQ CAN THIS GUY TEACH ME THIS IN 7 MINUTES BUT NOT MY TEACHER IN 1 WEEK
@Modest.200
@Modest.200 3 жыл бұрын
how to make sure that my answer is correct?
@pratikparajuli5991
@pratikparajuli5991 3 жыл бұрын
Great Explanation! If you had multiple points such as (-4,2) and you calculated the 'd' to the slope for all of them. How would you determine the deviation/error of the 'd' value?
@jagdishchandra2508
@jagdishchandra2508 5 жыл бұрын
Nice sir
@fisslewine1222
@fisslewine1222 8 жыл бұрын
What if yo want to find the shortest distance between two points that form a line and a point?
@mickapoo
@mickapoo 8 жыл бұрын
In your case, first find the equation of the line between the two points. Then, follow the instructions he laid out on this video to find the distance between your line and the point.
@fisslewine1222
@fisslewine1222 8 жыл бұрын
boozapian that makes sense; but how would you form the equation of a line between two points?
@mickapoo
@mickapoo 8 жыл бұрын
You can use point slope formula. y - y1 = m(x - x1)
@hafsaimtiaz5832
@hafsaimtiaz5832 5 жыл бұрын
Why did uh flip 3x bt -1|3 plz explain
@nafimershad8933
@nafimershad8933 5 жыл бұрын
Bcz... The product of slope parpendicular line of a given st. Line and the slope of the given st.line is -1
@lohwenkong8347
@lohwenkong8347 3 жыл бұрын
You could just do it by using: d = (|Ax_0+By_0+C|)/sqrt(A^2+B^2), as the point is (x_0, y_0)
@sabrinadiminutto1348
@sabrinadiminutto1348 7 жыл бұрын
this was so helpful thank you so much
@ShivShankar-mj1om
@ShivShankar-mj1om 2 жыл бұрын
I love you 💓💓💓😘
@ShivShankar-mj1om
@ShivShankar-mj1om 2 жыл бұрын
I love you 😘💖💖
@compositeembryo7186
@compositeembryo7186 4 жыл бұрын
this formula is good for some collision detection. specifically between a circle and a line
@theblinkingbrownie4654
@theblinkingbrownie4654 4 жыл бұрын
and that's exactly what I am doing.
@jsunny22
@jsunny22 5 жыл бұрын
Would've been better if you explained how you got the slope of the second equation by illustrating the dot product of two orthogonal vectors is zero.
@NehaUppal09
@NehaUppal09 5 жыл бұрын
He actually used that if m and M are the slopes of two perpendicular lines then m*M = -1 so, m = -1/M
@NekoNoAme
@NekoNoAme 7 жыл бұрын
Thank God!!!
@Thomas-hm5mf
@Thomas-hm5mf 3 жыл бұрын
thanks bud
@mason1797
@mason1797 5 жыл бұрын
Thanks
@khamisi__6378
@khamisi__6378 7 жыл бұрын
THX
@huriaiqbal3395
@huriaiqbal3395 7 жыл бұрын
(2,0) 3x-4y+15=0 I changed it to y=mx+b form and got y=3x+3.5 then I tried to get an equation that intersects the line that is formed by the given equation. I got y=-1/3x+b I tried to find b I got -2/3 took both equations I got to equal each other (excluding y values) 3x+3.5=-1/3x+-2/3 solved. x=-25/8. Also known as -3.125 plugged my x value to one of the equations to get a y value. y= -2.375 used the distance equation d=√(x²-x¹)² + (y²-y¹)² plugged in the coordinates and got 7.627048905 I look at the answer key and I see 21/5. My answer is wrong. I need help
@AnonYmous-zt6kr
@AnonYmous-zt6kr 7 жыл бұрын
Huria iqbal you can also solve this by using another method : you have a point (2,0) and you have a line 3x-4y+15=0 (if the line is not in general line form, you need to rewrite it as that)(general line form: Ax+by+c=0) then you use d=|Ax+by+c| / √(A^2 + B^2) then you get d= |6+0+15| / √(9+16) which equals to 21/5
@Espectador666
@Espectador666 2 жыл бұрын
5 years late but your b is positive 2/3
@straightstraws4254
@straightstraws4254 5 жыл бұрын
What about calculating the distance from O(0,0) to 2 points? I feel I'm missing something
@hamzabaig8856
@hamzabaig8856 2 жыл бұрын
you haven't looked at the whole video
@user-ne2hv7yu3m
@user-ne2hv7yu3m 4 жыл бұрын
🤗🤗🤗🤗
@themanfromtheeast2048
@themanfromtheeast2048 7 жыл бұрын
love your f*cking energy man :)
@darkbloom5385
@darkbloom5385 6 жыл бұрын
Thank you.
@ostrich4president231
@ostrich4president231 5 жыл бұрын
Dude the real fucking hit is here omgomgogmogmogmogmogm!
@ventcr3874
@ventcr3874 2 жыл бұрын
doing this in grade 9 and we suppose to have formula memorized 😢
@Deeznutter493
@Deeznutter493 9 ай бұрын
it looks so easy when other people are solving it :(
@endozoameeialoul.4133
@endozoameeialoul.4133 3 жыл бұрын
i don't get the fraction thing, help😭 heheheh
@lucagamez2022
@lucagamez2022 Жыл бұрын
common mr oldridge W
@mylifeasriya
@mylifeasriya 5 жыл бұрын
why did we use negative reciprocal SOMEONE PLS HELP MEEEEE
@Demon-uw9vc
@Demon-uw9vc 4 жыл бұрын
because its a perpendicular bisector so it makes the second line a 90 degree angle so the slope is gonna be the complete opposite 8 Months later but
@nerissahenayon8613
@nerissahenayon8613 5 жыл бұрын
the distance is 7.6
@frozenassassin0733
@frozenassassin0733 7 жыл бұрын
Grade 9! Phew
@simonee1549
@simonee1549 4 жыл бұрын
my test is in two days and i still have to understand stuff oof
@bilalfarah2005
@bilalfarah2005 3 жыл бұрын
are you somali LOL
@simonee1549
@simonee1549 3 жыл бұрын
@@bilalfarah2005 huh
@Nurg0
@Nurg0 5 жыл бұрын
Why doesn't he care? WHO HURT HIM
@willhj06
@willhj06 2 жыл бұрын
Lol dude my teacher spent 12 hours of class time to say what you just did in 7 minutes
@sia461
@sia461 3 жыл бұрын
i’m in 9th grade 😭
@genemomuhammed180
@genemomuhammed180 6 жыл бұрын
find the equation of the line between the points (3,-7) and (-5,19)? okay and tell us bro
@YX106
@YX106 5 жыл бұрын
Who else have exam tomorrow for math
@andrewkola4208
@andrewkola4208 4 жыл бұрын
This guy is Jesus
@anotherkage4392
@anotherkage4392 4 жыл бұрын
Ghhy
@Godakuri
@Godakuri 5 жыл бұрын
My textbook is teaching me completely different and your way makes zero sense to my problems
@TalkswithJinesh
@TalkswithJinesh 6 жыл бұрын
Thanks
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