Question

3. If the point (1.-2) lies in the half plane represented by x - 2y-ks 0 then the least value of k is​

Answer 1

Answer:

I hope your question is x-2y-k=0

x=1

y=-2 (1 , -2)

x-2y-k=0

1-2(-2)-k =0

1-(-4)-k=0

1+4-k=0

5-k=0

-k=0-5

-k=-5

Answer 2

Answer:

-5 is the anss..............