Answer :
x - 2y = -14
y = (x + 14)/2
Then
(4,9) IS A Solution
(-10,2) is A Solution y = (-10+14)/2= 4/2=2
(0,-14) is NOT a solution
(0,7) Is A Solution y= (0+14)/2= 7
(7,0) is NOT solution
(14,0) is NOT solution
x - 2y = -14
y = (x + 14)/2
Then
(4,9) IS A Solution
(-10,2) is A Solution y = (-10+14)/2= 4/2=2
(0,-14) is NOT a solution
(0,7) Is A Solution y= (0+14)/2= 7
(7,0) is NOT solution
(14,0) is NOT solution