Question

verify that which of the followings are solution of equation x+2y=4:(0,2),(0,-2),(-2,0),(2,1)(3,1/2) and (5,0)

Answer 1

Given x+2y=4
Let x=0,y=2
0+2 (2)
4 it a solution of given equation
Let x=0,y=-2
0+2 (-2)
-4 it is not a solution of given equation
Let x=-2,y=0
-2+2 (0)
-2 it is not a solution to given equation
Let x= 2,y=1
2+2 (1)
4 it is a solution for given equation
Let x=3,y=1/2
3+2 (1/2)
3+1
4 it is a solution for given equation
Let x=5,y=0
5+2 (0)
5 it is not a solution for the given equation