If the point (2, -1) lies on the graph of the equation 2x + ky = 4,
then find the value of k.
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Step-by-step explanation:
GIVEN :
=> point (2, -1) lies on the graph of the equation
2x + ky = 4
From the given equation
2x + ky = 4
Put x = 2 and y = -1 in the given equation , we get ,
2x + ky = 4
=> 2(2) + k(-1) = 4
=> -k = 4 - 4
=> k = 0
Hence ,
The value of k is 0 .
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