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shutvik [7]
3 years ago
8

Given the equation, y = 3{(0.87)^x} y = 3 ( 0.87 ) x , where y is the amount of money in thousands in x years, describe what is

happening?
a. The amount of money is decreasing at a rate of 13% per year
b. The amount of money is decreasing at a rate of 87% per year
c. The amount of money is decreasing at a rate of 13 per year
d. The amount of money is decreasing at a rate of 87 per year
Mathematics
1 answer:
wolverine [178]3 years ago
7 0
The correct answer is Choice A.

The amount of money is decreasing at a rate of 13% per year. The rate that is shown in the equation is 0.87 or 87%. 87% is 13% lower than 100%. That is the amount of the decrease each time. 
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Answer:

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When r is an x-intercept of the function, (x -r) is a factor. The two given x-intercepts mean that two factors of the function are (x -(-3))(x -7). There may be a vertical scale factor that is not necessarily positive.

These factors multiply out to give ...

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