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thatjacksonguy Group Title

what is the equation of a line that has a slope of -1 and passes through the point(-3,12)??

  • one year ago
  • one year ago

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  1. Mertsj Group Title
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    Do you know point slope form of the equation of a line?

    • one year ago
  2. thatjacksonguy Group Title
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    no

    • one year ago
  3. Mertsj Group Title
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    \[y-y _{1}=m(x-x _{1})\]

    • one year ago
  4. thatjacksonguy Group Title
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    dont i need two points??

    • one year ago
  5. Mertsj Group Title
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    replace ysub1 with 12. replace m with -1. replace xsub1 with -3 and solve for y

    • one year ago
  6. thatjacksonguy Group Title
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    ok im a little lost now

    • one year ago
  7. thatjacksonguy Group Title
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    wont i still have x?

    • one year ago
  8. Mertsj Group Title
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    \[y-12=-1(x- -3)\]

    • one year ago
  9. Mertsj Group Title
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    \[y-12=-1(x+3)\]

    • one year ago
  10. Mertsj Group Title
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    \[y-12=-x-3\]

    • one year ago
  11. Mertsj Group Title
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    y=-x+9

    • one year ago
  12. thatjacksonguy Group Title
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    ohhh ok i understand now thanks again..

    • one year ago
  13. Mertsj Group Title
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    And that is the equation of a line whose slope is -1 and passes through the point (-3,12).

    • one year ago
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