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tlions tlions
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10 years ago
The following function models the amount, f(x), in billions of dollars of new student loans x years after 1993.  f(x) = 6.75 √x + 12
According to the model, in what year is the amount loaned expected to reach $39billion?
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wrote...
10 years ago
The answer is 2020.
wrote...
Educator
10 years ago
Hello...

f(x) = 6.75 √x + 12

Set f(x) to 39.

39 = 6.75 √x + 12

Solve for x

(39 - 12) / 6.75 = √x

4 = √x

16 = x

Add 16 to 1993

You get: 2009
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