SOLUTION: Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.003518x4 + 0.087326x3 – 1.3367x2 + 12.46x + 2.914. When a unicorn is 2.5 ye

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.003518x4 + 0.087326x3 – 1.3367x2 + 12.46x + 2.914. When a unicorn is 2.5 ye      Log On


   

Question 401223: Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.003518x4 + 0.087326x3 – 1.3367x2 + 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) About Me  (Show Source):
You can put this solution on YOUR website!
Just replace x = 2.5 and x = 12 to find the human's age, and evaluate the expression.

However, I'm wondering if you supplied the right equation, or the textbook wrote a very poor question. If you know a little about limits you can determine that lim%28x-%3Einfinity%2C+f%28x%29%29 is negative infinity. In other words, once the unicorn gets older, the human's age decreases......