Question

write the equation of y_axis​

Answer 1

Here, c1 is a constant and to eliminate this, we need a point lying on y-axis and we know y-axis passes through the i.e. O (0, 0) is the point lying on the line. Equation of y-axis comes out to be x=0 in both cases, i.e. when c is finite and when c is infinite. Moving on to lines parallel to x-axis and y-axis.