ok so i got the tangent lines of the two points,

point A(4,3) y=4/3x-25/3

point B(4,-3) y=-4/3x+25/3

now i just need help finding the normal lines...thanks...

mathlete

The normal line to a curve at a point is perpendicular to the tangent line at that point.

Find the equation of the normal line to this circle at Point A.

y(x) =

Find the equation of the normal line to this circle at Point B.

y(x) =

(d) At what point do the two normal lines intersect?