Question

find the value of k if the point A 2 - 1 lies on the graph of the line 3 X + K Y is equal to 4​

Answer 1

x=2

y=-1

3x+ky=4

3×2+k×-1=4

6+(-k)=4

6-k=4

-k=4-6

-k=-2

k=2