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Homework Help: Point of Intersection NEED HELP

  1. Jan 26, 2010 #1
    1. The problem statement, all variables and given/known data

    Find the point of intersection



    2. Relevant equations

    Equation 1

    y=1/5(2)4x-7

    Equation 2

    y=1/10(1/2)9-3x


    3. The attempt at a solution


    Made them equal each other got rid of the 1/5 one one side and it made the 1/10 turn into 1/2 and now i dont know what to do so I got

    (2)4X-7 = 1/2(1/2)9-3X
     
    Last edited: Jan 26, 2010
  2. jcsd
  3. Jan 26, 2010 #2

    Mark44

    Staff: Mentor

    I think you need more parentheses! Is this 24x - 7 = (1/2)(1/2)9 - 3x?

    If you don't know how to use superscripts for exponents, at least put parentheses around exponents with multiple terms.
     
  4. Jan 26, 2010 #3
    happy now?
     
  5. Jan 26, 2010 #4

    Mark44

    Staff: Mentor

    Am I happy that you can quote what I did? Not so much that I'm doing cartwheels or anything.

    Can you simplify a*ab?

    Also, 2x = (1/2)-x.

    These hints should help you write your equation so both sides use the same base.
     
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