1. The problem statement, all variables and given/known data A woman lives on an island 2km from the mainland. Her fitness club is 4km along the shore from the point closest to the island. To get to the fitness club, she paddles her kayak at 2km/h. Once she reaches the shore she jogs at 4km/h. Determine where she should land to reach her fitness club in the shortest possible time. 2. Relevant equations 3. The attempt at a solution I set up a co-ordinate system with (0,0) the island @ (2,0) and the fitness club @ (0,4) Not sure how to approach this one. How do I express an equation as a function of time?