What is the equation of the normal to the curve x^2 + y^2 = 25 at (4, 3)?
Problem
What is the equation of the normal to the curve $x^2 + y^2 = 25$ at (4, 3)?
| A. $4x + 3y = 0$ | C. $3x + 4y = 0$ |
| B. $3x - 4y = 0$ | D. $4x - 3y = 0$ |
equation of tangent
Equation of a curve with given equation of slope and passing through a point
Problem
What is the equation of the curve passing through the point (3, -2) and having a slope at any point (x, y) equal to (x2 + y2) / (y3 - 2xy)?