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Slope of a Line

Posted on 2004-10-27
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Last Modified: 2012-06-27
Need a quick check on this answer:

3x-5y=8

3x-5y-8=0

3x-8=5y

5y/5 = 3x-8 / 5

y= 3/5x - 8/5

slope = 3/5 ?

0
Question by:LC7Web
    6 Comments
     
    LVL 58

    Accepted Solution

    by:
    if x = 1 and y = -1     3x - 5y = 3 + 5 = 8
    if x = 6 and y = 2      3x - 5y = 18 - 10 = 8

    x increased by 5, y by 3... slope is indeed 3/5 :)

    Cheers
    0
     
    LVL 26

    Expert Comment

    by:BigRat
    In y = m*x + c, m is the slope, so just rewrite the equation in that form :-

    y = 3/5*x - 8/5

    so m = 3/5.
    0
     
    LVL 16

    Expert Comment

    by:manav_mathur
    My god,

    thats an awful lot of points the auhtor is giving here......Can I have some too??

    by the way, your maths is entirely correct and you dont need to show that many steps to prove it.....

    Manav
    0
     
    LVL 1

    Author Comment

    by:LC7Web
    As per the Membership Agreement:

    "the more points you assign to a question, the faster it will get attention from the Experts"
    0
     
    LVL 31

    Expert Comment

    by:GwynforWeb
    I have answered much easier questions than this in other TA's for 500 points. If you know nothing of coordinate geometry this is a hard question.
    0
     
    LVL 31

    Expert Comment

    by:GwynforWeb
    ee_ai_construct,  I would also say that manav_mathur's comments are off topic as well and should be removed.
    0

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