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?

anonymous · Answer

A. Vertical compression by a factor of 13/15; the braking distance will be more with optimally inflated new tires than with tires having more wear.
	B. Horizontal compression by a factor of 13/15; the braking distance will be less with optimally inflated new tires than with tires having more wear.
	C. Horizontal compression by a factor of 13/15; the braking distance will be more with optimally inflated new tires than with tires having more wear.
	D. Vertical compression by a factor of 13/15; the braking distance will be less with optimally inflated new tires than with tires having more wear.

anonymous · Answer

NEED HELP!