HELP! Pre-Calc Chapter 2 HW (Q2)

Brooke is located 5 miles out from the nearest point A along a straight shoreline in her seakayak. Hunger strikes and she wants to make it to Kono's for lunch; see picture. Brooke can paddle 2 mph and walk 5 mph. Brooke ocean 5 mi kayak reaches shore here Kono's shore 717 6 mi (a) If she paddles along a straight line course to the shore, find an expression that computes the total time to reach lunch in terms of the location where Brooke beaches the boat. (Let point A have the coordinates (0, 0) and the location where Brooke beaches the boat have the coordinates (x, 0). Let one unit equal 1 mile.) (b) Determine the total time to reach Kono's if she paddles directly to the point "A". hr (c) Determine the total time to reach Kono's if she paddles directly to Kono's. (Round your answer to one decimal place.) hr (d) Do you think your answer to (b) or (c) is the minimum time required for Brooke to reach lunch