Introduction to graphing systems of linear inequalities | Algebra II | Khan Academy

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  • Опубліковано 21 жов 2024
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    Learn how to graph systems of two-variable linear inequalities.
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    Algebra II on Khan Academy: Your studies in algebra 1 have built a solid foundation from which you can explore linear equations, inequalities, and functions. In algebra 2 we build upon that foundation and not only extend our knowledge of algebra 1, but slowly become capable of tackling the BIG questions of the universe. We'll again touch on systems of equations, inequalities, and functions...but we'll also address exponential and logarithmic functions, logarithms, imaginary and complex numbers, conic sections, and matrices. Don't let these big words intimidate you. We're on this journey with you!
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КОМЕНТАРІ • 64

  • @yme3345
    @yme3345 4 роки тому +30

    My teacher explained this for an hour. And I still didn't understand.
    Thanks khan academy

  • @boundalong7236
    @boundalong7236 8 років тому +138

    This man is hella good at drawing with a mouse

  • @AdvTrainerJoeMontano
    @AdvTrainerJoeMontano 6 років тому +136

    if you are here , your probably cramming for a test or you have a bad teacher. Good luck my friends. I can say good bye until my kids have this. GOOD LUCK for many years to come.

    • @elguapo1478
      @elguapo1478 3 роки тому +4

      bro this a youtube video not a highschool quote

    • @mr.s1961
      @mr.s1961 2 роки тому +2

      Or we are here because we have a great teacher who links us to this, and all we have to do is watch, say what we learned, good or bad points, and we get points that make sure we make straight A's/dean's list.

    • @dilnor
      @dilnor Рік тому +1

      or you so stupid and don't undrestand your teacher.

  • @Krazyrayglitter
    @Krazyrayglitter 7 років тому +56

    I've watched many vids and I still don't get it ://

  • @jelisabeth1140
    @jelisabeth1140 9 років тому +6

    Thank you. I think this cleared up my issue with graphing these inequalities.

  • @pponcho8245
    @pponcho8245 12 років тому +17

    Brings back school memories lol

    • @ihadscarleteyesfordinner7776
      @ihadscarleteyesfordinner7776 3 роки тому +2

      Wait... People 8 years ago used to use (lol) i thought it was only 3 years old 😂😭

    • @ritvikyessirr
      @ritvikyessirr 9 місяців тому

      @@ihadscarleteyesfordinner7776 lol

  • @rheagolding7240
    @rheagolding7240 7 років тому +11

    definition of life saving at its best

  • @elnazsaghezi8
    @elnazsaghezi8 13 років тому +7

    Thankkkkkk YoU So0oo0o0o0o0o0o Muchhhhhhh

  • @omuomu0220
    @omuomu0220 7 років тому +4

    thank you

  • @captainkencel1557
    @captainkencel1557 5 років тому +10

    5:25 GREEN MAGENTA LINE

  • @musagwebu7566
    @musagwebu7566 Рік тому +3

    He made this when i was 2

  • @i.cleanload
    @i.cleanload 5 років тому +13

    I thought I could graph a line until I got to this unit...I never felt so dumb in my entire 15 years of life😭🤦🏽‍♀️

  • @sarahrashed7648
    @sarahrashed7648 4 роки тому

    Too clear, thanks

  • @hiteshmehtamehta9833
    @hiteshmehtamehta9833 6 років тому +1

    thenx

  • @tatrianaponce7929
    @tatrianaponce7929 5 років тому +7

    See I wanna graduate but I'm scared because I suck at math and it's a requirement for a diploma!!! I wanna learn how to do at least algebra.

  • @owen5468
    @owen5468 5 років тому +3

    I got a test tomorrow.. I think I'm good.

  • @antonisrichetta8081
    @antonisrichetta8081 3 роки тому

    Awesome

  • @Naomi-nz3cn
    @Naomi-nz3cn 6 років тому +4

    I don't get it. The first solution y > x-8, the y int is -8 and the slope is 1, right? Why the other point is 8? 😑😑

    • @-Psy
      @-Psy 5 років тому +3

      Hi, it's me Shanella Simple, the initial y-int is -8 which make a point (0,-8) on the graph, x=1 so the slope is 1/1, since to reach to second point on the x-int will be +8 u need to do 1/1 8 times because 1/1 means ur going up 1, and going right 1, so u end up w/ a positive x cuz its going to the right cuz its 1 not -1 and u have to do it 8 times cuz 1x8 = 8 and that 8 will cancel out the -8 y-int so it can reach to x-int, but since u not only moved up 8 times u moved right 8 times too, so think of the slope as 8/8 then. Simple concept.

    • @z3us_favorite568
      @z3us_favorite568 5 місяців тому +1

      @@-Psycan you explain again in simpler silly guy terms? My brain did not process that

  • @lemonicity4834
    @lemonicity4834 3 роки тому +1

    green magenta line

  • @d-rey1758
    @d-rey1758 4 місяці тому

    y = x - 8. and the slope is 1. then howcome when he moved to the right by one he went up by 8. I thought when he moved to the right by one, he should go up by one since m = 1?

  • @zebibdegol7842
    @zebibdegol7842 7 років тому +2

    Hello sir, Am sorry I couldn't understand how you the slop, can you say something please.

    • @axalate4572
      @axalate4572 6 років тому +2

      the slop is the tan value of the angle between the strightline and the x- axis obtained in the anticlockwise notation

  • @kabogaming5254
    @kabogaming5254 Рік тому

    5:06

  • @camidiazg1444
    @camidiazg1444 6 років тому +2

    HOW DID HE GET THAT 8 FOR THE X AXIS LIKE SOMEONE HELP

    • @mattnotarmaso5476
      @mattnotarmaso5476 6 років тому +2

      Cami Diaz G -8 is the y intercept for the first equation in the top left of the screen so that’s where he must first plot for a starting location

  • @sinairuiz6727
    @sinairuiz6727 6 років тому +2

    hello

  • @catlovergirl9230
    @catlovergirl9230 5 років тому

    5:25 green magenta line??!!!

  • @DaKuteCate
    @DaKuteCate 3 роки тому

    I have no understanding of practical application to these things. It seems like a torture method mathematicians came up with.

  • @rugshaker
    @rugshaker 6 років тому +2

    Says algebra ll I’m in algebra l about to have a test and imma 7 th grader

    • @Ktui-nz3zy
      @Ktui-nz3zy 3 роки тому +1

      Congratulations you're a prophet

  • @zacmcfarlen2798
    @zacmcfarlen2798 9 років тому +1

    hi

  • @georgeivansvenby1127
    @georgeivansvenby1127 5 років тому +1

    why -8 again??

    • @Ginajoyy
      @Ginajoyy 5 років тому

      When y=-x-8 is transposed
      y in the equation is set to zero : 0=x-8
      And x is brought to the other side which then changes the sign infront of x , like this : x=-8

  • @Wwjd606
    @Wwjd606 2 роки тому

    POV your cramming for a test

  • @unicorncave4700
    @unicorncave4700 7 років тому +1

    LANGSAMER BITTE

  • @bacmoe9280
    @bacmoe9280 6 років тому +1

    🤯🤒🤒🤒🤒🤒

  • @tuongm1669
    @tuongm1669 Рік тому

    Why it's so easy to understand 🤡

  • @blackholes8590
    @blackholes8590 10 років тому +2

    thank you

  • @paulceltics
    @paulceltics 13 років тому +1

    thanks

    • @jppj6942
      @jppj6942 2 роки тому

      Dam 11 years!!!