l. The picture below represents a 13-ft. ladder that is leaning against a house. Its base starts to slide away. The base is moving away from the wall at a rate of 3 ft/sec. (10 points) 13 b. What will t!le variable x' (dx/dt) and y' represent? (plea write a full statement) c. Why is there no variable labeling the hypotenuse the. Itriangle? base of the ladder is 12 ft. away from the wall?