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Adeenieweenie
06.12.2021 •
Mathematics
Please help i dont have much time (50 point question and ill mark you brainliest)
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Ответ:
Part A: Option 1 is exponential because it does not increase by a constant rate. Option 2 is linear because it increases by a constant rate.
Part B:
For option 1: a(b)^x
a=1000 and b=1100/1000=1.1
the function will be:f(n)=1000(1.1)^x
For option 2:
Since the price increases by $100 each year, its linear.
Here would be the function: f(n)=1000+100(n)
Part C: Invest for 20 years in option 1: Yes.
f(20)=1000(1.1)^20
=1.1^20=6.72750
=6.72750x1000
=6727.50
y=6727.50, which is the price of the investment in 20 years.
For option 2:
f(20)=1000+100(20)
=1000+2000
=3000, which is the price the of the investment in 20 years.
If she uses option 2 rather than option 1, she will loose $3727.5