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anonymous

  • one year ago

write an equation in the form y =mx+b for the line that passes through (1,-10) and has a slope of 3

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  1. anonymous
    • one year ago
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    ok so m= slope so first plug in 3 for m

  2. anonymous
    • one year ago
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    whats your new formula

  3. anonymous
    • one year ago
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    what do i have to subtract to get my formula

  4. anonymous
    • one year ago
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    nothing

  5. anonymous
    • one year ago
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    just substitute 3 for m which is the slope

  6. anonymous
    • one year ago
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    (3,y1

  7. anonymous
    • one year ago
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    having hard time need to know more

  8. anonymous
    • one year ago
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    y =mx+b is your formula just put 3 where m is to get y=3x+b get it?

  9. anonymous
    • one year ago
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    ok get it

  10. anonymous
    • one year ago
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    now, take your point (x,y) which is (1,-10) and plug it in that formula that i just gave you

  11. anonymous
    • one year ago
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    10=3(1)+b

  12. anonymous
    • one year ago
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    solve for b

  13. anonymous
    • one year ago
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    3x1=3

  14. anonymous
    • one year ago
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    not quite, subtract 3 from ten, remember? to solve a variable isolate it by putting it on one side of equation with everything else on the other

  15. anonymous
    • one year ago
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    -7

  16. anonymous
    • one year ago
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    yes thats b, no use m and b in the original formula y=mx+b

  17. anonymous
    • one year ago
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    *now, not no sorry

  18. anonymous
    • one year ago
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    thank u

  19. anonymous
    • one year ago
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    my pleasure

  20. anonymous
    • one year ago
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    it said im wrong

  21. anonymous
    • one year ago
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    what did you put in

  22. anonymous
    • one year ago
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    y=3x+-7

  23. anonymous
    • one year ago
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    sorry, its y=3x+7 10-3=7 i didn't notice the neg sign

  24. anonymous
    • one year ago
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    i guess subtract 3 from ten confused you.... that means take 3 away from ten not ten from 3

  25. anonymous
    • one year ago
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    so sorry

  26. anonymous
    • one year ago
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    its ok you help i appreate it

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