Question

X + B Y + c is equals to how does not represent an equation of line if _____.
(A)a=c=0,b is not equal to 0
(B)b=c=0,a is not equal to 0
(C)a=b=0
(D)c=0,as not equal to 0,b is not equal to 0

Answer 1

i think .....c option is right