Respuesta :

Answer:

- .25     (per unit)

Step-by-step explanation:

Value at 1 :   .25 (1^2) - 2(1) = -1.75

Value at 6:  .25 (6^2) -2(6) = -3

this happens on the interval length (6-1) = 5

rate of change is then  ( -3 - - 1.75) / (5) =  - .25