Question

Which one is not a solution of x - 2y = 4
(2, -2)
(4, -1)
(6, 1)
(-2, -3)​

Answer 1

Answer:

(2,-2);(4,-1)

Step-by-step explanation:

(Here 2 is the x & -2 is the y.)

substitute the values

ie. 2-2×-2

=2+4

=6 which is not equal to 4

Again ;

=4-2×-1

=4+2

=6 which is also not equal to 4

Hope it will be helpful ☺️

Answer 2

Answer:

i)(2,-2)

=> Let x be 2 and y be -2

By substituting LHS and RHS

LHS=2-2(-2) RHS =4

=2+4

=6 RHS =4

Hence LHS # RHS

ii)(4,-1)

Let x be 4 and y be -1

By substituting LHS and RHS

LHS= 4-2(-1) RHS =4

=6 RHS=4

Hence LHS # RHS

i)(2,-2)&ii)(4,-1)not a solution of x - 2y = 4

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