(i) True, because this poin satisfies the given equation.
If we put x = 0 and y = 3 in LHS of the given equation, we find;
LHS=3×0+4×3=0+12=12=RHS
Hence, (0, 3) lies on the linear equation 3x + 4y = 12.
(ii) False, because this point does not satisfies the given equation.
If we put x = 0 and y = 7 in LHS of the given equation, we get;
LHS = (0)+2(7)=0+14=14≠7 = RHS
Hence, (0, 7) does not lie on the line x + 2y = 7.