Last month, Maria purchased a new cell phone for $500. The store manager told her that her new cell phone would depreciate by 70% every 6 months. Maria thinks she will want to replace her phone after a while. What will be the value (V) of her phone if she tries to trade it in after 2 years? Select all that apply.

or

Step-by-step explanation:

The value of her phone after t intervals of 6 months is given by the following equation:

In which V(0) is the initial value and r is the depreciation rate, as a decimal.

Last month, Maria purchased a new cell phone for $500.

This means that

The store manager told her that her new cell phone would depreciate by 70% every 6 months.

This means that

So

After 2 years:

2 years is 24 months, 24/6 = 4, so we have to find V(4).

The possible options are:

or

x^6

step-by-step explanation:

this is correct because:

x-6=0

0*x=0

so

x^6

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney