Question

(3 ,- 4) is not a solution of
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Answer 1

Answer:

option(C) is the answer

Step-by-step explanation:

Here it is given as 3,-4 which means that $X=3$ and $Y=(-4)$

By putting the values in the given option we will find which one is not a solution,

NOTE:IF THE L.H.S WHEN PUTTED VALUES WILL NOT BE EQUAL TO R.H.S IT WILL MEAN THAT IT IS NOT A SOLUTION FOR THE EQUATION.

OPTION A ------

$X+2Y+5=0$

We have,

X=3

Y=(-4)

Then by putting the values,

3+2(-4)+5=0

3+(-8)+5=0

0=0

Therefore it is a solution

OPTION B  ------

2X-3Y=18

Similarly solving,

2(3)-3(-4)=18

6+12=18

18=18

Therefore it is also a solution

OPTION C --------

2X+3Y+6=0

Similarly solving,

2(3)+3(-4)=0

6-12=0

Here,

-6$\\\neq$0

Therefore it is not a solution

So option(C) is the answer

Hope you understand✌️

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