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Homework Help: Line Equation

  1. Oct 4, 2011 #1
    Find an equation y=mx+b for the line whose graph is sketched.
    The number m =
    The number b =

    Attached Files:

  2. jcsd
  3. Oct 4, 2011 #2


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    Science Advisor

    If y= mx+ b, then y(0)= m(0)+ b= b. That is, b is the y value where x= 0- where the line crosses the y-axis. what is that?

    If y(0)= m(0)+ b= b, and y(1)= m(1)+ b= m+ b, then m= (m+b)- b= y(1)- y(0). What is that?
  4. Oct 4, 2011 #3
  5. Oct 5, 2011 #4


    Staff: Mentor

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