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8 The value of Serafina's car is decreasing by 10% each year.
Its value in dollars x years from now will be 12,000.0)".
a. How much is the car worth right now? Show your work.
9
X
SOLUTION
b. How much was the car worth one year ago? Show your work.

Sagot :

MrRoyal

The rate at which the value of the car decrease is an illustration of depreciation

  • The worth of the car right now is $12000
  • The worth of the car one year ago is $13333

How to determine the car worth right now

The function is given as:

[tex]y = 12000 * 0.9^x[/tex]

The term "Right now" means x = 0.

So, we have:

[tex]y = 12000 * 0.9^0[/tex]

[tex]y = 12000[/tex]

Hence, the worth of the car right now is $12000

How to determine the car worth right one year ago

The function is given as:

[tex]y = 12000 * 0.9^x[/tex]

One year ago means x = -1.

So, we have:

[tex]y = 12000 * 0.9^{-1}[/tex]

[tex]y = 13333[/tex]

Hence, the worth of the car one year ago is $13333

Read more about depreciation at:

https://brainly.com/question/1937269

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