Question

Solve the equation by using graphically x-y-1=0 , x-2y+2=0

Answer 1

a1=1,b1=-1,c1=-1

a2=1,b2=-2,c2=2

a1/a2=b1/b2=c1/c2

1/1=-1/-2=-1/2

1=1/2=-1/2

therefore the three lines are not equal

the given lines are intersecting lines

consistent and unique solutions