1. The problem statement, all variables and given/known data if f(x,y,z) indicates electrical charge in the water at position(x,y,z) and the gradient is <12,-20,5>, in which direction should the shark swim to find its prey? 2. Relevant equations 3. The attempt at a solution is the answer in the direction of <12,-20,5> im little confused when gradient is given and how to find direction? do i find unit vector of gradient or something?