2x - 5y = 0 x + y = 0 solve graphically.
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Correct option is
C
(5, -2)
x−5y=15 ----- (1)
2x+5y=0 ----- (2)
From equation (1) assume the value of x and y to satisfy the equation to zero.
x−5y−15=0 ------ (3)
Put x=0,y=−3 in equation (3)
0−5(−3)−15=0
15−15=0
0=0
Again put x=5,y=−2 in equation (3)
5−5(−2)−15=0
5+10−15=0
15−15=0
0=0
Now plotting (0,−3),(5,−2) and joining them, we get a straight line.
From equation (2) assume the value of x and y to satisfy the equation to zero.
Put x=5,y=−2 in equation (2)
2x+5y=0
2(5)+5(−2)=0
10−10=0
0=0
Again put x=0,y=0 in equation (2)
2(0)+5(0)=0
0+0=0
0=0
Plotting (5,−2),(0,0) and joining them, we get another straight line.
These lines intersect at the point (5,−2) and therefore the solution of the equation is x=5,y=−2
solution
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