A linear equation in two variables x and y is of the form ax + by + c = 0, where
(a) a≠0,b≠0.
(b) a≠0,b=0
(c) a=0,b≠0
(d) a = 0, c = 0
The conditions for ax+by+c=0 to be a linear equation in two variables (x,y) are
If roots of the equation ax3+bx2+cx+d=0 remain unchanged by increasing each coefficient by one unit, then
The Equation y = - 5, in two variables can be written in the form of ax + by + c = 0 as