SOLUTION: Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001518x^4 + 0.067326x^3 � 1.4367x^2 + 12.46x + 2.914. When a unicorn is 2.5

Question 420205: Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001518x^4 + 0.067326x^3 � 1.4367x^2 + 12.46x + 2.914. When a unicorn is 2.5 years old, what is its age in human equivalent years? What about when it is 12 years old?
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Replace x with 2.5 into the expression for f(x) and simplify (you might want to use a calculator for this). Do the same with x=12.

Here's a question: What is the human's age when the unicorn is 1,000 years old? 1,000,000 years old? The limit actually tends to negative infinity...that is, when the unicorn becomes old enough, the human's age is a negative number.
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