Consider the following statements

I. The length p of the perpendicular from the origin to the line ax + by = c satisfies the relation $${p^2} = {{{c^2}} \over {{a^2} + {b^2}}}$$.

II. The length p of the perpendicular from the origin to the line $${x \over a} + {y \over b} = 1$$ satisfied the relation $${1 \over {{p^2}}} = {1 \over {{a^2}}} + {1 \over {{b^2}}}$$.

III. The length p of the perpendicular from the origin to the line y = mx + c satisfies the relation $${1 \over {{p^2}}} = {{1 + {m^2} + {c^2}} \over {{c^2}}}$$.

Which of the above is/are correct?

What is the equation of the straight line passing through the point (2, 3) and making an intercept on the positive Y-axis equal to twice its intercept on the positive X-axis?

The perpendiculars that fall from any point of the straight line 2x + 11y = 5 upon the two straight lines 24x + 7y = 20 and 4x $$-$$ 3y = 2 are

The equation of the line, when the portion of it intercepted between the axes is divided by the point (2, 3) in the ratio of 3 : 2, is