SOLUTION: Essay; show all work. Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001718x4 + 0.087326x3 � 1.3367x2 + 12.46x + 3.914. Whe

Question 483338: Essay; show all work. Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001718x4 + 0.087326x3 � 1.3367x2 + 12.46x + 3.914. 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!
Somehow this is one of those overused problems that textbooks just like to throw in repeatedly.

Solution is quite simple, to find f(2.5), just replace all occurrences of x with 2.5. Similarly, to find f(12), replace x with 12.

f(2.5) = 28.007 years
f(12) = 76.2241 years

http://www.wolframalpha.com/input/?i=-+0.001718x^4+%2B+0.087326x^3+%E2%80%93+1.3367x^2+%2B+12.46x+%2B+3.914+where+x+%3D+12

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