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Compassionate

  • 3 years ago

Y = -2x + 3, how would I graph the -2x part?

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  1. ineedhelponmyhw
    • 3 years ago
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    every X-axis number, go down 2 (y-axis numbers)

  2. Mimi_x3
    • 3 years ago
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    \[y=-2x+3\] To skectch; find the \(x\) intercept and \(y\) intercept. \(y\)-interecept: \(x\) = \(0\) \(x\)-intercept: \(y\)\=\(0\)

  3. Compassionate
    • 3 years ago
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    I'm asking how I would work the equation out and do the whole (-1, 1) thing.

  4. ineedhelponmyhw
    • 3 years ago
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    Y=Mx+B

  5. ineedhelponmyhw
    • 3 years ago
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    the "B" is the number on the y-axis

  6. ineedhelponmyhw
    • 3 years ago
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    |dw:1342159491528:dw|

  7. ineedhelponmyhw
    • 3 years ago
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    are you still confused?

  8. Compassionate
    • 3 years ago
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    Yes.

  9. ineedhelponmyhw
    • 3 years ago
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    sorry i didnt see it was -2, i thought it was positive 2.................after you find the "b" you go down 2 (to the right)

  10. ineedhelponmyhw
    • 3 years ago
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    |dw:1342159875720:dw|

  11. ineedhelponmyhw
    • 3 years ago
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    (0,3).....(1,1).....(2,-1)

  12. Compassionate
    • 3 years ago
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    So I find B by graphing 3, and then go down -2?

  13. Compassionate
    • 3 years ago
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    Why did it go over 1?

  14. ineedhelponmyhw
    • 3 years ago
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    that how you graph it.....

  15. ineedhelponmyhw
    • 3 years ago
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    after you find the "dots" on the graph, you can make a line

  16. ineedhelponmyhw
    • 3 years ago
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    |dw:1342160217623:dw|

  17. ineedhelponmyhw
    • 3 years ago
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    |dw:1342160252113:dw|

  18. ineedhelponmyhw
    • 3 years ago
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    heres a site (just for in case. lol)

  19. ineedhelponmyhw
    • 3 years ago
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    http://www.freemathhelp.com/equation-grapher.html

  20. Compassionate
    • 3 years ago
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    Why did my negative 2 become positive, and where did (2, -1) come from -_-

  21. ineedhelponmyhw
    • 3 years ago
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    |dw:1342160578279:dw|

  22. Compassionate
    • 3 years ago
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    So I basically put 1 over the number with the x next to it. +3 = 3, and 2x = 1/2x which means down 2, and over one, which will give me the correct answer.

  23. ineedhelponmyhw
    • 3 years ago
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    its becoming negative not positive

  24. Compassionate
    • 3 years ago
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    Kk

  25. ineedhelponmyhw
    • 3 years ago
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    "So I basically put 1 over the number with the x next to it.".....yes, the x is the x-axis

  26. Compassionate
    • 3 years ago
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    okay.

  27. ineedhelponmyhw
    • 3 years ago
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    the "+3" lies on the y-axis

  28. ineedhelponmyhw
    • 3 years ago
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    which is why i started off with (0,3).......it doesnt lie on the x-axis [x,y] < the 3 replaces the y.

  29. ineedhelponmyhw
    • 3 years ago
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    |dw:1342160891990:dw|

  30. ineedhelponmyhw
    • 3 years ago
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    |dw:1342161018710:dw|

  31. ineedhelponmyhw
    • 3 years ago
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    |dw:1342161171583:dw|

  32. ineedhelponmyhw
    • 3 years ago
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    |dw:1342161211873:dw|

  33. ineedhelponmyhw
    • 3 years ago
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    do you get it now????

  34. ineedhelponmyhw
    • 3 years ago
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    http://www.math.com/school/subject2/lessons/S2U4L3GL.html <just go to this site.

  35. ineedhelponmyhw
    • 3 years ago
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    it will help you hopefully

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