Results 1 to 4 of 4

Math Help - equation of the line.....

  1. #1
    Member
    Joined
    Dec 2007
    Posts
    98

    equation of the line.....

    This is the quesnition....

    Write an equation of the line in the form x=a, y=b, or y=mx+b

    trough (8,3) parallel to y=5x-6


    Im completely lost here!?

    thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,708
    Thanks
    1638
    Awards
    1
    Because they are parallel the two line will "look" alike.
    So the line you want is y=5x+b. Use x=8 & y=3 to find b.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Dec 2007
    Posts
    98
    Quote Originally Posted by Plato View Post
    Because they are parallel the two line will "look" alike.
    So the line you want is y=5x+b. Use x=8 & y=3 to find b.
    so then I would plug in both 8 and 3 into y=5x+b?

    3=5(8)+b ?

    3=40b ?

    3-40=b ?

    -37=b ?
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Newbie JoFaSs's Avatar
    Joined
    Dec 2007
    From
    Earth
    Posts
    6
    You got the correct answer but you forgot the '+' after the b in the second step

    3=5(8)+b
    3=40+b
    b=3-40=-37
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: March 18th 2011, 10:36 AM
  2. Replies: 9
    Last Post: July 31st 2009, 05:39 AM
  3. Replies: 11
    Last Post: June 2nd 2009, 06:08 PM
  4. Replies: 5
    Last Post: October 13th 2008, 10:16 AM
  5. equation of a line perpendicular to the line defined
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: June 6th 2007, 09:02 AM

Search Tags


/mathhelpforum @mathhelpforum