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anonymous

  • one year ago

NEED HELP FAST! I WILL GIVE MEDAL AND FAN!! Write the equation of the line that is parallel to the line 3x - y = -3 and passes through the point (4, -2).

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  1. hartnn
    • one year ago
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    what have you tried? :)

  2. hartnn
    • one year ago
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    could you find the slope of 3x - y = -3 ?

  3. Pawanyadav
    • one year ago
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    Slope of line must be 3. y=3x+3 Comparwith y=mx+c

  4. Pawanyadav
    • one year ago
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    Let eq be y=3x+c Find c by satisfying the equation with (4,-2) Then put value of c in above equation you will get the answer.

  5. Pawanyadav
    • one year ago
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    Slope of line must be 3. y=3x+3 Comparwith y=mx+c

  6. anonymous
    • one year ago
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    So i have to change the equation to y=mx+b?

  7. Pawanyadav
    • one year ago
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    Yes

  8. anonymous
    • one year ago
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    so it would be y=3x-3?

  9. Pawanyadav
    • one year ago
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    Y=3x+3

  10. anonymous
    • one year ago
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    in the answer choices they're looking for a fraction in the equation

  11. hartnn
    • one year ago
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    you got how the slope is 3 ?

  12. anonymous
    • one year ago
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    yes i get that part

  13. anonymous
    • one year ago
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    becaus b= slope in y=mx+b

  14. hartnn
    • one year ago
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    yes, so your answer will be of the form y - 3x +c now we have the point 4,-2 plug in x= 4, y= -2 in that

  15. hartnn
    • one year ago
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    in y= 3x+c **

  16. Pawanyadav
    • one year ago
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    No m is the slope .

  17. anonymous
    • one year ago
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    -2 = 3*4 + c

  18. Pawanyadav
    • one year ago
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    b is the point where the line cuts the y-axis

  19. anonymous
    • one year ago
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    yes the y-intercept sorry i got confused for a second i realize that now thank you

  20. hartnn
    • one year ago
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    -2 = 3*4 + c yes thats right, now what is c ?

  21. anonymous
    • one year ago
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    3?

  22. Pawanyadav
    • one year ago
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    Welcome, now solve other part carefully.

  23. hartnn
    • one year ago
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    how? -2 = 12 +c subtract 12 from both sides to get c

  24. anonymous
    • one year ago
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    -14 = c

  25. anonymous
    • one year ago
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    -2 =3*4 -14

  26. hartnn
    • one year ago
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    yes, so your equation as of now is y = 3x -14 right ? now what are your choices?

  27. anonymous
    • one year ago
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    no right now i have -2 = 3*4 - 14

  28. hartnn
    • one year ago
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    we had y = mx +c the slope we got , m = 3 so we were y= 3x +c. now we need to just find the "c" part. for which we used the given point. and got c = -14

  29. hartnn
    • one year ago
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    and if we plug c in y = 3x+c, we get y = 3x -14 :)

  30. anonymous
    • one year ago
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    yes! but the answer choiches all have fractions in them

  31. anonymous
    • one year ago
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    nevermind

  32. anonymous
    • one year ago
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    that is correct thanks so much for your help!

  33. hartnn
    • one year ago
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    most welcome ^_^ hallp to help :)

  34. hartnn
    • one year ago
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    *happy

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