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| Question 918894:  What is the solution to the system?
 
 
 Line 1
 x y
 –1 –2
 1 2
 
 Line 2
 x y
 –2 10
 4 1
 
 
 ( ____ ,_____  )
 
 
 Found 2 solutions by  ewatrrr, Alan3354:
 Answer by ewatrrr(24785)
      (Show Source): Answer by Alan3354(69443)
      (Show Source): 
You can put this solution on YOUR website! What is the solution to the system? 
 Line 1
 x y
 –1 –2
 1 2
 Line 2
 x y
 –2 10
 4 1
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 Put the points in parentheses:
 Line 1: (-1,-2) and (1,2)
 Line 2: (-2,10) and (4,1)
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 Get equations of the lines.
 Line 1: (-1,-2) and (1,2)
 Find the slope, m
 m = diffy/diffx = (-2-2)/(-1-1) = 2
 Use y = mx + b and either point to find b, the y-intercept
 Using (1,2): 2 = 2*1 + b --> b = 0
 y = 2x is an equation of Line 1
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 Get the eqn of line 2 the same way.
 
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