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caishaax3

  • one year ago

Write the equation of the line that passes through (–1, 5) and has a slope of 3 in point-slope form.

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  1. Caishaax3
    • one year ago
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    A. y=3x+2 B. y=3x+8 C. y=-3x-2 D. y=-3x+8

  2. anonymous
    • one year ago
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    Point slope-formula: \[y-y_{1}=m(x-x _{1})\]

  3. anonymous
    • one year ago
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    (-1,5) is the\[\left( x _{1},y _{1} \right)\]

  4. anonymous
    • one year ago
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    And m=3

  5. anonymous
    • one year ago
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    Plug them in.

  6. anonymous
    • one year ago
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    |dw:1438132689777:dw|

  7. Caishaax3
    • one year ago
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    i some how ended up with y=8x

  8. anonymous
    • one year ago
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    Oh you shouldn't add 5 and 3x. :)

  9. anonymous
    • one year ago
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    What is 3(x+1)?

  10. anonymous
    • one year ago
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    Any answers?

  11. Caishaax3
    • one year ago
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    x+1 is just x so wouldnt it be just 3x?

  12. anonymous
    • one year ago
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    |dw:1438133039031:dw|

  13. anonymous
    • one year ago
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    You forgot to multiply 3 and 1. :)

  14. Caishaax3
    • one year ago
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    3 times 1 is 3 not 1 though

  15. anonymous
    • one year ago
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    |dw:1438133216169:dw|

  16. anonymous
    • one year ago
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    My work here is done. You should know the answer by now. :D

  17. Caishaax3
    • one year ago
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    now do i move the 5 over by adding it to both sides

  18. anonymous
    • one year ago
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    Yes!

  19. Caishaax3
    • one year ago
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    giving me y=3x+8?

  20. anonymous
    • one year ago
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    You got it correct! A click on the "best response" is highly appreciated. :D

  21. Caishaax3
    • one year ago
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    thank you

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