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MauriceLong

  • 3 years ago

Write an equation of the line containing the given point an parallel to the given line. (7,-6); 7x-9y=4 The equation of the the line is Y=

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  1. edwardp
    • 3 years ago
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    7x-9y=4 => slope = 7/9 the equation of the line will be y=mx+b -6=(7/9)*7+b and then solve for b

  2. MauriceLong
    • 3 years ago
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    im still confuse with this..

  3. edwardp
    • 3 years ago
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    which step?

  4. edwardp
    • 3 years ago
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    the line is parallel to the given line, so it has the same slope

  5. MauriceLong
    • 3 years ago
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    how would i write the equation for Y=

  6. mark_o.
    • 3 years ago
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    hi, first before we get the parallel line equation,: from this equation 7x-9y=4 what is y=?

  7. MauriceLong
    • 3 years ago
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    y= 7/9x-4/9

  8. mark_o.
    • 3 years ago
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    ok good with this line y= 7/9x-4/9 what is your slope m=?

  9. mark_o.
    • 3 years ago
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    hmm seems like you dont like an interaction question and answer,,... :D ok after getting the slope of this line y= 7/9x-4/9 , also get the slope of parallel to this line then form an equation of line from the point (7,-6) with that slope of parallel line.. ..

  10. mark_o.
    • 3 years ago
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    @ MauriceLong did you get it ?

  11. MauriceLong
    • 3 years ago
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    the slope is 4

  12. MauriceLong
    • 3 years ago
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    ok

  13. MauriceLong
    • 3 years ago
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    can u help me solve this problem please

  14. mark_o.
    • 3 years ago
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    im sorry the slope of parallel line is the same m1=m2 so you can form another line using this slope m1, using the point(7,-6) and the formula y1-y=m(x-x1)

  15. MauriceLong
    • 3 years ago
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    ok. i am getting a better understanding on this so far.

  16. mark_o.
    • 3 years ago
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    from y= mx + b y= 7/9x - 4/9 what is the slope m?

  17. mark_o.
    • 3 years ago
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    yesss just answer what i ask you and you will get it ... :D

  18. mark_o.
    • 3 years ago
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    try to compare the formula to the one you answered on y=7/9 x -4/9

  19. MauriceLong
    • 3 years ago
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    would i have too subtract 7/9-4/9

  20. mark_o.
    • 3 years ago
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    by comparing the formula from y= mx + b y= 7/9x - 4/9 what is the slope m? we know that b=4/9, what is slope m?

  21. mark_o.
    • 3 years ago
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    no you cant subtract because 7/9 x has an x with it and the 4/9 has no x.. so they are different terms

  22. MauriceLong
    • 3 years ago
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    ok

  23. mark_o.
    • 3 years ago
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    if it would be 7/9x - 4/9 x then its ok to subtract but this time they are not.. :D go ahead you can ask me more question what do you want to know

  24. MauriceLong
    • 3 years ago
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    |dw:1354520274544:dw|

  25. MauriceLong
    • 3 years ago
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    im having a hard time solving this problem

  26. mark_o.
    • 3 years ago
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    ok i will show you the easy way of doing the solution of it,,, :D

  27. MauriceLong
    • 3 years ago
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    ok

  28. mark_o.
    • 3 years ago
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    we want to know the slope m of this particular line |dw:1354578182118:dw|

  29. mark_o.
    • 3 years ago
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    from y= mx + b y= 7/9x + - 4/9 we know that b=-4/9,, what is slope m=?

  30. MauriceLong
    • 3 years ago
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    I dont know how too get the slope. Confuse.

  31. MauriceLong
    • 3 years ago
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    do i subtract -4/9 too both sides

  32. mark_o.
    • 3 years ago
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    i will give you more examples if y= 3x +4... the slope of this is m=3 and b=4 for f(x)=1/3 -7 the slope of this line is m=1/3 and b=-7

  33. MauriceLong
    • 3 years ago
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    so the slope is 4/9

  34. mark_o.
    • 3 years ago
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    from y= mx + b y= 7/9x + - 4/9 that is b=-4/9,, what is m?

  35. MauriceLong
    • 3 years ago
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    m=7/9

  36. mark_o.
    • 3 years ago
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    yessss : correct :D

  37. mark_o.
    • 3 years ago
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    so now that you know m=7/9, we also have the point (x1,y1)=(7,-6); use that given to the formula y-y1=m(x-x1)

  38. MauriceLong
    • 3 years ago
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    y-y1=7/9(x-x1)

  39. mark_o.
    • 3 years ago
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    correct but you also have to sub what is x1 and y1 (x1,y1)=(7,-6); sub thius to what you have done you are getting closer :D

  40. MauriceLong
    • 3 years ago
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    7x-6y

  41. mark_o.
    • 3 years ago
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    this is what you said the answer y-y1=7/9(x-x1) all you need to do is to sub what is x1 and y1 there

  42. mark_o.
    • 3 years ago
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    (x1,y1)=(7,-6); sub this to your answer y-y1=7/9(x-x1)

  43. mark_o.
    • 3 years ago
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    if you have a point of (7,-6) your x1=7 and y1=-6... therefore this can be like this (x1,y1)=(7,-6)

  44. mark_o.
    • 3 years ago
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    therefore plug those x1 =7 and y1=-6 to your answer y-y1=7/9(x-x1)

  45. MauriceLong
    • 3 years ago
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    y=7/9(x-6)

  46. mark_o.
    • 3 years ago
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    y - y1 = 7/9 ( x - x1 ) y - ____ = 7/9 (x - ______)

  47. MauriceLong
    • 3 years ago
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    y-6=7/9(x-7)

  48. mark_o.
    • 3 years ago
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    the point is (7 , -6) ( x1,y1) x1=7 and y1= -6 careful on negative sign, put the negative sign on 6... you are getting closer to the correct answer

  49. mark_o.
    • 3 years ago
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    y - y1 = 7/9 ( x - x1 ) y - ____ = 7/9 (x - ______) give it more try ill tell you if you are correct :D

  50. mark_o.
    • 3 years ago
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    your answer y-6=7/9(x-7) -6 is not correct because y- -6=__?

  51. mark_o.
    • 3 years ago
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    y - y1 = 7/9 ( x - x1 ) .... y - ____ = 7/9 (x - 7) give it more try on the y, ill tell you if you are correct :D - - 6 is not= -6

  52. mark_o.
    • 3 years ago
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    y - y1 = 7/9 ( x - x1 ) y - -6 = 7/9 (x - 7) try to simplify this more

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