Question

(c) the abscissa 15 - 5 and ordinate is 3
25. Check which of the following are solutions of the equation x-2y = 4 and which are not: [3]
(a) (0.2)
(b)(2.0)
(c) (4.0)​

Answer 1

Answer:

Given equation isx+2y=4

(i) Put the value x=0 and y=2 we get

0+2×2=4

⇒4=4

Then both sides are equal then (0,2) is the solution of equation x+2y=4

(ii) Put the value x=2 and y=0 we get

2+2×0=4

⇒2



=4  

Then both sides are not  equal then (0,2) is not the  solution of equation  

x+2y=4

(iii) Put the value x=4 and y=0 we get

4+2×0=4

⇒4=4

Then both sides are equal then (4,0) is the solution of equation x+2y=4

(iv)x+2y=4

Put x=  

2

​  

,y=−3  

2

​  

 we get

2

​  

+2(−3  

2

​  

)=4

⇒  

2

​  

−3  

2

​  

=4

⇒−2  

2

​  

 



=4  

Then both sides are not  equal then (  

2

​  

,−3  

2

​  

) is not the  solution of equation  

x+2y=4

(v) Put the value x=1 and y=1 we get

1+2×1=4

⇒3



=4  

Then both sides are not  equal then (1,1) is not the  solution of equation  

x+2y=4

(vi) Put the value x=-2 and y=3 we get

−2+2×3=4

⇒4=4  

Then both sides are   equal then (-1,3) is  the  solution of equation  

x+2y=4

Step-by-step explanation: