(1 point) a small island is 4 miles from the nearest point p on the straight shoreline of a large lake. if a woman on the island can row a boat 2 miles per hour and can walk 3 miles per hour, where should the boat be landed in order to arrive at a town 6 miles down the shore from p in the least time? let x be the distance (in miles) between point p and where the boat lands on the lakeshore.