Question

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

Answer 1

Step-by-step explanation:

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

4-4k=4

-4k=4-4

k=-1/4

Answer 2

Answer: (2,-1)

Therefore, 2= x-axis

                 -1= y-axis

2x+ky=4

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

-1k = 4 - 4

k = 0/-1

ANS: Value of k = 0.