The resale value of a textbook decreases by 25% with each previous owner. A new textbook is sold for $85. Which function represe

Question

vladimir2022 [97]

2 years ago

6

The resale value of a textbook decreases by 25% with each previous owner. A new textbook is sold for $85. Which function represe

nts the resale value of the textbook after x owners? (x) = 85(1 – 0.25)x
f(x) = 85(1 + 0.25)x

f(x) = 85(0.25)x

f(x) = (85 – 0.25)x

Mathematics

2 answers:

Alisiya [41] · Answer 1 · 2023-06-06T12:27:58+03:00

Alisiya [41]2 years ago

9 0

A exponential function would represent it nicely f(x)=b*a^x
Reason being a decrease of %
a = 1+r
r = -25% = -0.25
And b being what the original cost of the book
f(x)=85*0.75^x
Where f(x) is the price after x amount of previous owners

denis-greek [22] · Answer 2 · 2023-06-06T14:09:45+03:00

denis-greek [22]2 years ago

7 0

Answer:

A exponential function would represent it nicely f(x)=b*a^x

Reason being a decrease of %

a = 1+r

r = -25% = -0.25

And b being what the original cost of the book

f(x)=85*0.75^x

Where f(x) is the price after x amount of previous owners

Step-by-step explanation: