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anonymous

  • one year ago

What is the y-intercept of the equation 2x + 3y = 12? -2/3 4 6 12

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  1. Astrophysics
    • one year ago
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    Hey set it up in y = mx+b (b = y - intercept) format that way you will be able to see the y - intercept clearly.

  2. Astrophysics
    • one year ago
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    So solve for y, do you know how to do that?

  3. anonymous
    • one year ago
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    yes

  4. ganeshie8
    • one year ago
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    do it

  5. anonymous
    • one year ago
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    ok

  6. ganeshie8
    • one year ago
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    2x + 3y = 12 start by subtracting 2x both sides

  7. Astrophysics
    • one year ago
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    What do you mean

  8. anonymous
    • one year ago
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    u - 2x from 12 =10 2x - 3y and u get 1y

  9. ganeshie8
    • one year ago
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    remember this in algebra : you can't add/subtract apples and coconuts

  10. ganeshie8
    • one year ago
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    2x + 3y = 12 subtracting 2x both sides : 2x + 3y = 12 -2x -2x you should get : 3y = 12 - 2x

  11. anonymous
    • one year ago
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    ok

  12. ganeshie8
    • one year ago
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    but "y" still has that 3 attached to it how to get rid of that 3 ?

  13. Astrophysics
    • one year ago
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    Often for these algebraic problems to move something to the other side we use the opposite operation of what already exists, so since there's a 3 attached to the y, which means it's being multiplied. What can we do to get rid of the 3?

  14. Astrophysics
    • one year ago
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    Don't worry about being wrong, say what ever is on your mind it's ok

  15. anonymous
    • one year ago
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    c

  16. anonymous
    • one year ago
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    its b

  17. anonymous
    • one year ago
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    i am not doing that

  18. Astrophysics
    • one year ago
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    Yeah that's much better...haha divide both sides by 3

  19. Astrophysics
    • one year ago
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    I've been up for 24+ hours so that's my queue xD

  20. anonymous
    • one year ago
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    i did not delete your things

  21. Astrophysics
    • one year ago
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    I know I did

  22. anonymous
    • one year ago
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    ok

  23. ganeshie8
    • one year ago
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    hey just one moment

  24. Astrophysics
    • one year ago
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    Let me do the algebra quickly to...

  25. ganeshie8
    • one year ago
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    4 is correct, but may i know this : when you said below, what were you thinking ? |dw:1440084673397:dw|

  26. Astrophysics
    • one year ago
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    3y=12-2x y=(12-2x)/3 y= -2x/3+4 works out

  27. anonymous
    • one year ago
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    me or him

  28. Astrophysics
    • one year ago
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    \(\color{blue}{\text{Originally Posted by}}\) @ltj1234 u have 10 1 y left \(\color{blue}{\text{End of Quote}}\) Ganeshie is asking you what you meant by your comment here

  29. anonymous
    • one year ago
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    o ok

  30. ganeshie8
    • one year ago
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    yes you @ltj1234

  31. anonymous
    • one year ago
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    idk

  32. Astrophysics
    • one year ago
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    The 10 I think you were trying to subtract 2x from 12, but you can't do that since there is a variable (x)

  33. ganeshie8
    • one year ago
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    sure you know it ^

  34. ganeshie8
    • one year ago
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    when you have `12 - 2x`, you leave it like that you can't say that equals `10` because they are not "like terms" nevertheless, it was really a very good attempt from your side! keep it up!

  35. anonymous
    • one year ago
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    ok

  36. Astrophysics
    • one year ago
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    For sure, good job @ltj1234

  37. anonymous
    • one year ago
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    thanks

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