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anonymous

  • one year ago

Help pleaseee algebra 1- ill give you a lot of medals and ill fan if you help me

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  1. Godlovesme
    • one year ago
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    ok i think graphing would be the easiest way to do this :D do u have geogebra app?

  2. Godlovesme
    • one year ago
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    @blahhedup101 u there?

  3. anonymous
    • one year ago
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    yeah im here

  4. anonymous
    • one year ago
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    @Godlovesme

  5. anonymous
    • one year ago
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    and no i dont have a graphing app

  6. Godlovesme
    • one year ago
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    hmm is it fine if i graph it and u determine how many solutions the line will have? solution is just the intersection so it's easy :)

  7. anonymous
    • one year ago
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    ok sounds good :)

  8. Godlovesme
    • one year ago
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    great! :D so first are u familliar with the slope-intercept formula?

  9. Godlovesme
    • one year ago
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    y= mx + b ?

  10. anonymous
    • one year ago
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    sorry my mom was talking to me

  11. anonymous
    • one year ago
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    but yes i am familiar with y=mx+b

  12. Godlovesme
    • one year ago
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    it's cool :) so i guess you know that m stands for slope and b represents the y-intercept

  13. anonymous
    • one year ago
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    yes

  14. Godlovesme
    • one year ago
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    awesome! so if two lines have the same slope, it means thy are parallel. And if two lines are parallel, they will NEVER intersect which means there will be no solution so do u see any lines with the same slope?

  15. anonymous
    • one year ago
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    oh ok that makes sense and idk i dont know how to graph them

  16. Godlovesme
    • one year ago
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    no we dont need to graph it if we find any two equations that have the same slope for example y= 3x +1 and y= 3x +2 have the same slope,3 so the lines are parallel so there is no solution ( they will never intersect) make sense?

  17. anonymous
    • one year ago
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    ohhhhhhhhh

  18. anonymous
    • one year ago
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    ok ummm

  19. anonymous
    • one year ago
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    what about the last on is that no solution?

  20. Godlovesme
    • one year ago
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    so if u look at the first pair, you can tell that they have the same slope because -x is the same thing as -1x

  21. anonymous
    • one year ago
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    and the second last one is no solution

  22. Godlovesme
    • one year ago
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    hold on we're on the first one

  23. Godlovesme
    • one year ago
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    y= -x -2 y= -x -6 do this equations have the same slope? ^^

  24. anonymous
    • one year ago
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    um no

  25. Godlovesme
    • one year ago
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    um actually they do, look -x means -1x so we will have y= -1x -2 y= -1x -6 they both have a slope of -1

  26. anonymous
    • one year ago
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    ohhh... i thought they didnt because of the 2 and the 6

  27. Godlovesme
    • one year ago
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    that's the y-intercept , the slope is the one with x :)

  28. anonymous
    • one year ago
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    i dont get these they are very confusing sooo the numbers dont count ?

  29. Godlovesme
    • one year ago
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    sorry about the confusion :/ butt here y=mx+b we will be given numbers for m and b like y= 2x + 3 m = slope b= y-intercept so in this case our slope is 2 and the y-intercept is 3 got it?

  30. Godlovesme
    • one year ago
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    |dw:1433841887514:dw|

  31. Godlovesme
    • one year ago
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    @blahhedup101 was that confusing?

  32. anonymous
    • one year ago
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    idk i just suck at everything that has to do with graphs and slopes :/

  33. Godlovesme
    • one year ago
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    no it's okay just remember m represents slope and b represents y-intercept okay

  34. anonymous
    • one year ago
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    but youre explaining everything very well :)

  35. anonymous
    • one year ago
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    thanks for not leaving :)

  36. Godlovesme
    • one year ago
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    my pleasure dear (:

  37. Godlovesme
    • one year ago
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    ok so can u remember that m means slope and b means y-intercept ?please :DD sorry if i sound rude

  38. anonymous
    • one year ago
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    yes ma'am i remember

  39. anonymous
    • one year ago
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    im just confused about how do you know if its one solution or infinity

  40. Godlovesme
    • one year ago
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    we'll get there but for now you have to know how to determine the slope and y-intercept |dw:1433842646745:dw|

  41. Godlovesme
    • one year ago
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    so if m is slope then whats the slope in the above equation?

  42. anonymous
    • one year ago
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    2

  43. Godlovesme
    • one year ago
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    YES!! :DDDD *high fives* great job! :D what about the y-intercept?

  44. anonymous
    • one year ago
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    3... i understand all of that

  45. Godlovesme
    • one year ago
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    oh okay so now do u understand why i said the first two pairs have the same slope?

  46. anonymous
    • one year ago
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    the y=-x-2 ?

  47. Godlovesme
    • one year ago
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    yes

  48. anonymous
    • one year ago
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    yess

  49. Godlovesme
    • one year ago
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    awesome so since they are parallel they will be included in the "no solution" section :) got it?

  50. anonymous
    • one year ago
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    yeahh is the next one 1 solution ?

  51. Godlovesme
    • one year ago
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    YES! awesome job! :D

  52. anonymous
    • one year ago
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    is the rest 1 solution?

  53. Godlovesme
    • one year ago
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    no the third one is different and maybe the rest as well for the 3rd one we have y=3x+4 and 2y=6x+8 lets change 2y= 6x+8 in to y=mx+b form by dividing 2 from both sides 2y/2 = 6x/2 + 8/2 y= 3x+4 now we have the SAME equation! :O this means the lines have infinitely many solutions

  54. anonymous
    • one year ago
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    ohhh

  55. Godlovesme
    • one year ago
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    was that confusing?

  56. anonymous
    • one year ago
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    not the way you explained it but if i were to do it by myself id be lost

  57. Godlovesme
    • one year ago
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    im glad :D let's move to the fourth one we have y=-3 and x= -6 one sec, i'll post the screenshot of what the graph will look like

  58. anonymous
    • one year ago
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    ok :)

  59. Godlovesme
    • one year ago
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    http://prntscr.com/7f1e2v so how many intersections do u see? :P

  60. Godlovesme
    • one year ago
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    i mean where the blue and red line intersects

  61. anonymous
    • one year ago
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    is that 1 solution?

  62. Godlovesme
    • one year ago
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    yes, you're doing great! :DD take a look at the last one http://prntscr.com/7f21uy

  63. anonymous
    • one year ago
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    one solution

  64. Godlovesme
    • one year ago
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    YAYY! WE'RE DONE AND AWESOME JOB!! :DDD

  65. anonymous
    • one year ago
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    :) so its supposed to look like this?

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  66. Godlovesme
    • one year ago
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    yes :)

  67. anonymous
    • one year ago
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    Thank youu so muccchhhhhhhhh

  68. Godlovesme
    • one year ago
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    you're very welcome (:

  69. anonymous
    • one year ago
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    have a nice dayyyy

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