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cookiemonster:
help please!
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cookiemonster:
@Bearclaws72 @Vocaloid
cookiemonster:
Sophia invested some money in a bank at a fixed rate of interest compounded annually. The equation below shows the value of her investment after x years: f(x) = 500(1.05)^x What was the average rate of change of the value of Sophia's investment from the second year to the fourth year? 14.13 dollars per year 28.25 dollars per year 50.00 dollars per year 56.50 dollars per year
Ultrilliam:
@Mehek
BlankSpace:
Is this functions?
BlankSpace:
@cookiemonster Functions?
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cookiemonster:
i think so
BlankSpace:
Okay
BlankSpace:
The change in value over 2 years is $607.75 - $551.25 = $56.50.
BlankSpace:
Therefore the average rate of change is $56.50 / 2 = $28.25 per year.
BlankSpace:
That means the second answer is correct
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silvernight269:
do you get this problem?
Pennywise:
@BlankSpace has given you the correct answer
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