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anonymous

  • 5 years ago

Hi, I totally forgot how to do line and slope, can someone help me out???

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  1. anonymous
    • 5 years ago
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    how do you want to be helped? do you have example problems?

  2. anonymous
    • 5 years ago
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    Well, the first point on the graph is 1,2, the second is 0,-2

  3. anonymous
    • 5 years ago
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    okay do you know how to find the slope of the line given two points?

  4. anonymous
    • 5 years ago
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    no, that's why I'm here

  5. anonymous
    • 5 years ago
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    mmk, i'm just asking

  6. anonymous
    • 5 years ago
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    formula for slope is change in y over change in x

  7. anonymous
    • 5 years ago
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    so slope would be (-2 -2) / (0 - 1) which comes out to be 4 so the slope is four

  8. anonymous
    • 5 years ago
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    oh, I get it now, I was looking online, but everything was too comlicated, thanks for the help

  9. anonymous
    • 5 years ago
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    now we have the formula for a line y = mx + b where m is the slope and b is the intercept put slope in y = 4x + b we are also given two points, since both points are on the line, you can pick either say we pick the first one, plug it in for x and y 2 = 4(1) + b b = -2 line is y = 4x - 2

  10. anonymous
    • 5 years ago
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    sure thing

  11. anonymous
    • 5 years ago
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    that works, okay, that totally helps with homework, I'm glad i found this site

  12. anonymous
    • 5 years ago
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    cheers

  13. anonymous
    • 5 years ago
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    thanks for the help

  14. anonymous
    • 5 years ago
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    no problem

  15. anonymous
    • 5 years ago
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    alright, i have another question

  16. anonymous
    • 5 years ago
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    hello????????

  17. anonymous
    • 5 years ago
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    go ahead

  18. anonymous
    • 5 years ago
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    so if the equation is (3,-2), (0,-3) then u would switch it around to (0,-2), (3,-3)????

  19. anonymous
    • 5 years ago
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    ??????

  20. anonymous
    • 5 years ago
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    just because we are live, doesn't mean we are going to respond instantly you can't switch them because you would be changing the points

  21. anonymous
    • 5 years ago
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    then wat? I don't get it then.

  22. anonymous
    • 5 years ago
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    then you find the slope, like we did in the first question change in y over change in x

  23. anonymous
    • 5 years ago
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    i still don't understand, i'm only in 7th grade

  24. anonymous
    • 5 years ago
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    the question is find a line between (3,-2), (0,-3) so find the slope change in y over change in x (-3 - -2)/ (0 - 3) slope is 1/3 understand this?

  25. anonymous
    • 5 years ago
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    wait, so its kinda like subtracting

  26. anonymous
    • 5 years ago
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    yes slope formula is \[\frac{x1 - x2}{y1 - y2}\] is this more clear?

  27. anonymous
    • 5 years ago
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    i totaly get it now, OH, we did this last year in school, thanks!!!! (:

  28. anonymous
    • 5 years ago
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    lol no problem good luck

  29. anonymous
    • 5 years ago
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    thanks

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