bxllaneira bxllaneira

30-11-2016
Mathematics

Answered

The balance in two separate bank accounts grows each month at different rates. The growth rates for both accounts are represented by the functions f(x) = 2x and g(x) = 4x + 12. In what month is the f(x) balance greater than the g(x) balance?

A.Month 6

B.Month 5

C.Month 4

D.Month 3

Verified Answer :

MissPhiladelphia MissPhiladelphia

05-12-2016

First,
solve at which month does the two bank accounts be equal. Since f(x) = 2x and g(x) = 4x + 12, equating them

2x = 4x +12

Solving for x = -6

Meaning there is no way that the two account be
equal and there is no way that f(x) will be greater than g(x)

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