The minimum breaking distance d in feet for a typical vehicle can be modeled with the equation d(v) = 0.045v2, where v is the vehicle's speed in miles per hour. The minimum braking distance for a vehicle with new tires at optimal inflation is d(v) = 0.039v2. What kind of transformation describes this change from d(v) = 0.045v2 to d(v) = 0.039v2, and what does this transformation mean

Question

The minimum breaking distance d in feet for a typical vehicle can be modeled with the equation d(v) = 0.045v2, where v is the vehicle's speed in miles per hour. The minimum braking distance for a vehicle with new tires at optimal inflation is d(v) = 0.039v2. What kind of transformation describes this change from d(v) = 0.045v2  to  d(v) = 0.039v2, and what does this transformation mean