Answer:
v(x) = 880(1 -x/7)
Step-by-step explanation:
If the appliance is worthless in 7 years, its value decreases by 1/7 of its original value each year. The multiplier of value for a 7-year depreciation can be ...
(1 - x/7)
So, the refrigerator value can be modeled by ...
v(x) = 880(1 -x/7)