Find the length of the perpendicular from the point `(-3, 4)` to theline `3x+4y-5=0`

Using calculus find the length of the perpendicular from the point (2,-1) upon the line 3x-4y+5 =0.

Find the length of the perpendicular from the point (3,-2) to the straight line 12x - 5y + 6 = 0 ?

Using calculus find the length of perpendicular from the point (2,-1) upon the line 3x - 4y + 5 = 0.

(I) Find the foot and length of the perpendicular from the point (3,4,5) to the plane : 2 x - 5y + 3z = 39 . (ii) Find the length and the foot of the perpendicular from the point (7,14,5) to the plane 2x + 4y - z = 2 .