anonymous
  • anonymous
Determine an equation of the line through the given points. (-3, 5), (1,7).
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
(Y2-Y1)/(X2-X1)=x i believe
anonymous
  • anonymous
or =m then its y=mx+b
anonymous
  • anonymous
I am sorry, i'm not getting it.

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anonymous
  • anonymous
I got m=1/2.........i don't know where to go after that.
anonymous
  • anonymous
This book is Terrible
anonymous
  • anonymous
Slope is rise over run. Rise = change in the y-coordinate, run=change in the x-coordinate. You have two points. Call them (x1,y1), (x2,y2). So you plug them into (y1-y2)/(x1-x2). It doesn't matter what one you do first, as long as both points are consistent. So you got the slope right, so m is 1/2. :) Then you take a point and plug it in to solve for when x=0. Take (-3,5) and plug it in to y=mx+b 5 = .5 * -3 + b 5 = -1.5 + b 6.5 = b y = .5x + 6.5, if I'm right.
anonymous
  • anonymous
did you try youtubing it?
anonymous
  • anonymous
http://tutorial.math.lamar.edu/Classes/Alg/Graphing_Functions.aspx
anonymous
  • anonymous
very good, now plug in the calculator and see if its correct :D
anonymous
  • anonymous
Well, I wil YouTube it in a second...thanks..I got 5=1/2x+3

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