contestada

John is buying a new car. The value of one car he is considering is $20,000. The value of the car as it ages can be modeled by the
function v= 20,000(0.84), where t is the number of years from the time of purchase. One of the factors John is using to make his decision is
the value of the car over time until it reaches half its original value. What values of domain are reasonable for the given function in this
context?

Respuesta :

MrRoyal

The reasonable domain of the function is [0,4)

How to determine the domain?

The function of the car value is given as:

V(x) = 20000 * (0.84)^x

When the car reaches half its value, we have:

V(x) = 10000

Substitute V(x) = 10000 in V(x) = 20000 * (0.84)^x

10000 = 20000 * (0.84)^x

Divide both sides by 20000

0.84^x = 0.5

Take the logarithm of both sides

x log(0.84) = log(0.5)

Divide both sides by log(0.84)

x = 4

This means that the maximum value of x is 4

Hence, the reasonable domain of the function is [0,4)

Read more about domain at:

https://brainly.com/question/1770447

#SPJ1

Otras preguntas