Find the equation of a line passing through the point (2, 3) and parallel to the line 3 x−4 y+5=0.
Find the equation of line passing through (2, 3) and perpendicular to the line 3x + 4 y - 5 = 0.
Find the equation to the straight line parallel to 3 x−4 y+6=0 and passing through the middle point of the join of points (2, 3) and (4, −1).