Question

Check graphically whether the following pair of linear equations is consistent
yes, solve it graphically:
2x - 5y = 0; x + y = 0
​

Answer 1

let x=5 put in eqn 1.

2 (5)-5y=0 ; put x=2 in eqn 2

10-5y=0 2+y=0

-5y=0-10 y=0-2

-5y=-10 y=-2

put y=2 put y=5

2x-5 (2)=0

2x-10=0 x+5=0

2x=0 -10: x=-5

2x=-10

x= -5

i hope its help u

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