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anonymous

  • one year ago

What is the equation of a line passing through (-3, 7) and having a slope of -1/5? A. y=-5x+22 B. y=5x+22 C. y=1/5x + 32/5 D. y=-1/5x+32/5 E. y=-1/5x+22

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  1. pooja195
    • one year ago
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    We use the point slope formula \[\huge~\rm~y-y_1=m(x-x_1)\] where m=slope (x1,y1)

  2. triciaal
    • one year ago
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    |dw:1437056639003:dw|

  3. pooja195
    • one year ago
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    ^or that

  4. anonymous
    • one year ago
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    ok lol i'll try that

  5. anonymous
    • one year ago
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    b=51/5?

  6. pooja195
    • one year ago
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    I dont know how to do it this way....

  7. pooja195
    • one year ago
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    We use the point slope formula \[\huge~\rm~y-y_1=m(x-x_1)\] where m=slope (x1,y1)

  8. pooja195
    • one year ago
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    Try my way :P

  9. anonymous
    • one year ago
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    ok i'll try your way

  10. anonymous
    • one year ago
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    what do i plug in for the variables?

  11. pooja195
    • one year ago
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    M=slope so -1/5 x1=-3 y1=7

  12. anonymous
    • one year ago
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    k

  13. anonymous
    • one year ago
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    i m sorry i cant find a solution im not good at this kinda stuff

  14. pooja195
    • one year ago
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    \[\huge~\rm~y-7=-1/5(x-(-3)\]

  15. pooja195
    • one year ago
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    1st step distribute the -1/5 \(\huge\rm\color{red}{-1/5}{(x+3)}\)

  16. anonymous
    • one year ago
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    ok then what?

  17. pooja195
    • one year ago
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    Multiply.... ? -1/5 * x =? -1/5 * 3 = ?

  18. anonymous
    • one year ago
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    -x/5?

  19. pooja195
    • one year ago
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    Add 7 to both sides. y−7+7=−1/5x+−3/5+7

  20. pooja195
    • one year ago
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    Once you do that y=−1/5x+32/5

  21. pooja195
    • one year ago
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    Do you understand?

  22. anonymous
    • one year ago
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    yes i do thank you so much for your help

  23. pooja195
    • one year ago
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    No problem :) let me know if you need more help ^-^ Welcome to openstudy! :D

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