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itsjustme_lol

  • 3 years ago

Write the equation of the line with a slope of -1/3 and passing through the point (6, -4).

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  1. surdawi
    • 3 years ago
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    y-y1=m(x-x1)

  2. itsjustme_lol
    • 3 years ago
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    wait im confused to what that is?

  3. surdawi
    • 3 years ago
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    m is the slope and x1,y1 the point u have

  4. itsjustme_lol
    • 3 years ago
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    im not exactly understanding..."/

  5. surdawi
    • 3 years ago
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    what is the slope?

  6. itsjustme_lol
    • 3 years ago
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    -1/3

  7. surdawi
    • 3 years ago
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    ok plug that into y-y1=m(x-x1) now what is the x and y values?

  8. itsjustme_lol
    • 3 years ago
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    0,3?

  9. MathLegend
    • 3 years ago
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    In that formula.. m = slope

  10. MathLegend
    • 3 years ago
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    @itsjustme_lol can you plug in everything into that formula now?

  11. itsjustme_lol
    • 3 years ago
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    so m=-1/3

  12. MathLegend
    • 3 years ago
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    Right.... and you know what x1 and y1 are since they gave you the coordinates. So plug it in.... y-y1=m(x-x1)

  13. itsjustme_lol
    • 3 years ago
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    y-4=m(x-6)?

  14. MathLegend
    • 3 years ago
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    y-(-4)=-1/3(x-6) y+4=-1/3(x-6) @itsjustme_lol do you understand that?

  15. itsjustme_lol
    • 3 years ago
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    why did we put +4 in the second one?

  16. MathLegend
    • 3 years ago
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    y-(-4) = y+4

  17. MathLegend
    • 3 years ago
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    two negatives makes a positive

  18. MathLegend
    • 3 years ago
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    It is a negative being multiplied by a negative. That is something you should be familiar with.

  19. MathLegend
    • 3 years ago
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    y+4=-1/3(x-6) Can you simplify the right side of this equation?

  20. itsjustme_lol
    • 3 years ago
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    give me a second

  21. itsjustme_lol
    • 3 years ago
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    wait im still confused. im sorry!!!

  22. MathLegend
    • 3 years ago
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    It is fine.

  23. MathLegend
    • 3 years ago
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    What are you confused about?

  24. itsjustme_lol
    • 3 years ago
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    i dont know how to solve that equation

  25. MathLegend
    • 3 years ago
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    y+4=-1/3(x-6) *We must first distribute that -1/3 on the right side of the equation. y+4=-1/3x+2 Now we need to make this equation into the slope-intercept form... so y=mx+b... so lets subtract the 4 from both sides. y+4=-1/3x+2 -4 -4 --------------------- y=-1/3x-2

  26. MathLegend
    • 3 years ago
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    @itsjustme_lol do you understand?

  27. itsjustme_lol
    • 3 years ago
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    that makes sense now

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