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143a)




x     y=3x+1

0      1
1      4
2      7
x   y=-2x+4


0       -2*0+4=4 (0,4)
1       -2*1+4=2 (1,2)
2       -2*2+4=-4+4=0 (2,0)

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Suorat

  • 1. 143a) x y=3x+1 0 1 1 4 2 7
  • 2. x y=-2x+4 0 -2*0+4=4 (0,4) 1 -2*1+4=2 (1,2) 2 -2*2+4=-4+4=0 (2,0)