Question

check whether the system of linear equations 3x+4y-6=0 and 6x+8y-12=0 is constant

Answer 1

If you compare the coefficients of the two equations, then we will find that a1/a2 = b1/b2 = c1/c2 => 3/6 = 4/8 = 6/12 = 1/2 Therefore, the two lines are coincident or constant