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Tresag Group Title

solve the system of linear equations by graphing. [3x+y=0 [2x+y=2

  • one year ago
  • one year ago

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  1. sonja_lee2 Group Title
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    get y by its self do u know how to do that?

    • one year ago
  2. Tresag Group Title
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    no

    • one year ago
  3. sonja_lee2 Group Title
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    okay well you divide 3x by 0 and what do u get?

    • one year ago
  4. Tresag Group Title
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    0

    • one year ago
  5. sonja_lee2 Group Title
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    no for equations like this u just keep it in the equation so what you suppose to get is y=3x+0 and now you have something to graph

    • one year ago
  6. sonja_lee2 Group Title
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    no try and do it on the next one

    • one year ago
  7. sonja_lee2 Group Title
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    i meant now try*

    • one year ago
  8. Tresag Group Title
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    so is it -3x ?

    • one year ago
  9. sonja_lee2 Group Title
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    no where did u get the negative from?

    • one year ago
  10. sonja_lee2 Group Title
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    i gave u the answer now all u have to do it graph it

    • one year ago
  11. sonja_lee2 Group Title
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    but u still have to get the 2x+y=2 try to do it

    • one year ago
  12. Tresag Group Title
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    I don't know how to graph that

    • one year ago
  13. sonja_lee2 Group Title
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    the answer is [y=3x+0 [y=2x+2 you dont know how to graph that?

    • one year ago
  14. Tresag Group Title
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    no

    • one year ago
  15. sonja_lee2 Group Title
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    do u know what the y-intercept is?

    • one year ago
  16. sonja_lee2 Group Title
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    and the slope?

    • one year ago
  17. Tresag Group Title
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    no

    • one year ago
  18. sonja_lee2 Group Title
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    do you know this equation y=mx+b?

    • one year ago
  19. sonja_lee2 Group Title
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    m is the slope and b is the y-intercept?

    • one year ago
  20. Tresag Group Title
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    I don't understand :(

    • one year ago
  21. sonja_lee2 Group Title
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    is this your homework?

    • one year ago
  22. Tresag Group Title
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    yes

    • one year ago
  23. helder_edwin Group Title
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    u have \[ \large 3x+y=0\qquad\text{and}\qquad 2x+y=2 \]

    • one year ago
  24. Tresag Group Title
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    ok

    • one year ago
  25. helder_edwin Group Title
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    isolating y u have \[ \large y=-3x\qquad\text{and}\qquad y=-2x+2 \] ok?

    • one year ago
  26. Tresag Group Title
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    ok

    • one year ago
  27. helder_edwin Group Title
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    the easiest way to graph lines is doing a table. u need only two points.

    • one year ago
  28. Tresag Group Title
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    ok

    • one year ago
  29. helder_edwin Group Title
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    |dw:1348879936181:dw|

    • one year ago
  30. helder_edwin Group Title
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    |dw:1348879976897:dw|

    • one year ago
  31. Tresag Group Title
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    ok so what is the ordered pair ?

    • one year ago
  32. helder_edwin Group Title
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    for the first line u have the points (0,0) and (1,-3) for the second (0,2) and (1,0).

    • one year ago
  33. Tresag Group Title
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    ok, so what is the solution of the system of equations ????

    • one year ago
  34. helder_edwin Group Title
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    draw the lines. do it with the outmost precision u can.

    • one year ago
  35. helder_edwin Group Title
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    i can't do it here. this is something u have to do on your own.

    • one year ago
  36. Tresag Group Title
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    ok, thanks

    • one year ago
  37. helder_edwin Group Title
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    u r welcome

    • one year ago
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