If the distance between the point (4,k) and (1,0) is 5, then what can be the possible value of k

If the distance between the point (4,k) and (1,0) is 5, then what can

1.	If the distance between the point (4,k) and (1,0) is 5, then what can be the possible value of k
Answer» Let the points X (4,k) and Y(1,0)It is given that the distance XY is 5 units.By using the distance formula,XY = √ (4-1)2 + (k -0)25 = √9 + k225 = 9 + K2 (squaring on both side)K2 = 16k = ±4