Final answer:
The pivot point used for backing turns on a vehicle is located at the front axle.
Step-by-step explanation:
The pivot point used for backing turns is located at the front axle of the vehicle.
When performing a backing turn, the front axle is chosen as the pivot point because it allows for better control and maneuverability.
By turning the front wheels while keeping the rear wheels stationary, the vehicle can perform a smooth and accurate backing turn.