Check which of the following are solutions of the equation x-2y = 4 and which are not:

(i) (0, 2)


(ii) (2, 0)


(iii) (4, 0)


(iv)


(v) (1, 1)

(i) Put x = 0

And


y = 2


In the equation x – 2y = 4


0 – 2 * 2 = 4


-4 ≠ 4


Therefore,


(0, 2) isn’t a solution of the given equation


(ii) Put x = 2


And


y = 0


In the equation x – 2y = 4


2 – 2 * 0 = 4


2 ≠ 4


Therefore,


(2, 0) isn’t a solution of the given equation


(iii) Put x = 4


And


y = 0


In the equation x – 2y = 4


4 – 2 * 0 = 4


4 = 4


Therefore,


(4, 0) is a solution of the equation


(iv) Put x =


And



In the equation x – 2y = 4




(1 – 8) = 4


≠ 4


Therefore,


is n’t a solution of the given equation


(v) Put x = 1


And


y = 1


In the equation x – 2y = 4


1 – 2 * 1 = 4


-1 ≠ 4


Therefore, (1, 1) isn’t a solution of the given equation


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