Question

find the value of k point which point (1,-2) lies on the graph of lineae equation x-2y+k=0​

Answer 1

Answer:

Put the value of x as 1 and y as -2

By putting the value,

1 - 2(-2) + k = 0

1 + 4 + k = 0

5 + k = 0

k = -5