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tankabanditka [31]
3 years ago
9

The following function represents the value of a car, in dollars, after x years:

Mathematics
2 answers:
Assoli18 [71]3 years ago
8 0

Answer:

Option D.The decrease in the value of the car, which is 8%

Step-by-step explanation:

we have a exponential function of the form

f(x)=a(b)^{x}

where

y is the value of the car

x is the time in years

a is the initial value

b is the base

r is the rate of decrease

b=1+r

In this problem we have

a=$24,000 initial value of the car

b=0.92

so

0.92=1+r

r=0.92-1=-0.08=-8%-----> is negative because is a rate of decrease

Colt1911 [192]3 years ago
5 0

Answer:

D.The decrease in the value of the car, which is 8%​

Step-by-step explanation:

Since, in the exponential function,

f(x)=ab^x

a is the initial value,

b is the growth ( if > 1 ) or decay factor ( if between 0 and 1 ),

Here, the given equation that shows the value of car after x years,

f(x)=24000(0.92)^x

By comparing,

b = 0.92 < 1

Thus, 0.92 is the decay factor that shows the decrease in the value of car,

∵ Decay rate = 1 - decay factor

= 1 - 0.92

= 0.08

= 8%

Hence, the value of car is decreasing with the rate of 8%.

Option 'D' is correct.

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