If the point (2, -1) lies on the graph of the equation 3x + ky = 4, then the value of k is

-2

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-1

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Solution

The correct option is C
2

3x + ky = 4

Point (2, -1) lies on the graph of this equation.

3(2) + k(-1) = 4

6 - k = 4

k = 2

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