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brandonw998

  • one year ago

Help with finding equation of a line

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  1. brandonw998
    • one year ago
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  2. brandonw998
    • one year ago
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    I can't figure out how to find the y-intercept because it's a decimal. The y-intercept has to be in a fraction

  3. Vocaloid
    • one year ago
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    first, we pick a point on the line that isn't on a decimal (2,1) looks good now we plug them into the equation y = mx + b where x = 2, y = 1, m = slope = (-2/3), and b is the y intercept

  4. brandonw998
    • one year ago
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    Once I put it all together I get -0.33333333333, how do I put it in fraction form?

  5. Vocaloid
    • one year ago
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    hm, take a look at the graph, the y-intercept should be positive

  6. Vocaloid
    • one year ago
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    1 = (-2/3)*2 + b solve for b

  7. brandonw998
    • one year ago
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    Oops I think I did it wrong :(

  8. Vocaloid
    • one year ago
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    start by finding (-2/3)*2

  9. brandonw998
    • one year ago
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    It equals -1.33333333

  10. brandonw998
    • one year ago
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    Then once I add it to 1 I get 2.333333333

  11. brandonw998
    • one year ago
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    So how do I make that into a fraction?

  12. Vocaloid
    • one year ago
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    7/3

  13. brandonw998
    • one year ago
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    How did you do that?

  14. brandonw998
    • one year ago
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    I figured it out, Thanks Ms. Hatsune Miku!

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