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Solve graphically the following pair of linear equations :
$2x - y = 2$ and $4x - y = 4$
Also, write the coordinates of the points where the lines represented by these equations cut the y-axis.
$2x - y = 2$ and $4x - y = 4$
Also, write the coordinates of the points where the lines represented by these equations cut the y-axis.
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Solution: (a) Correct graph of each equation [1+1 marks]
Solution is $x=1, y=0$ or $(1, 0)$ [1/2 mark]
Lines cut y axis at $(0, -2)$ and $(0, -4)$ [1/2 mark]
Solution is $x=1, y=0$ or $(1, 0)$ [1/2 mark]
Lines cut y axis at $(0, -2)$ and $(0, -4)$ [1/2 mark]