Question

The price of products may increase due to inflation and decrease due to depreciation. Derek is studying the change in the price of two products, A and B, over time.

The price f(x), in dollars, of product A after x years is represented by the function below:

f(x) = 72(1.25)x

Part A: Is the price of product A increasing or decreasing and by what percentage per year? Justify your answer. (5 points)

Part B: The table below shows the price f(t), in dollars, of product B after t years:

t (# in years) 1 2 3 4
f(t) ($ in dollars) 65 84.5 109.85 142.81

Answer 1

@nettle404

Answer 2

@DeadReaper2073

Answer 3

Dude, I am sorry but I suck at math. I failed it 2 times in a row,

Answer 4

oh no. thanks anyway.

Answer 5

@Spring98

Answer 6

@bahrom7893

Answer 7

@mathmate

Answer 8

@Luigi0210 , @phi

Answer 9

Could someone please help me?

Answer 10

I suspect the function should be written:
\(f(x) = 72(1.25)^x\)
Whenever there is an exponent, write the ^ sign before it so helpers know that the number is exponentiated and not multiplied.
It is perfectly ok to write f(x) = 72(1.25)^x which means the same function.

Answer 11

ok sorry

Answer 12

f(x) = 72(1.25)^x