Question

In which points lie on y-axis. A(1, 1), B(1, 0), C(0, 1), D(0, 0), E(-1, 0), F(0, -1), G(4, 0), H(0, -7)

Answer 1

On x-axis, y coordinate is zero of each point, 

So B(1, 0), D(0, 0) E(-1, 0) and G(4, 0) lie on x-axis.