Graph y = x^3 - x^2 + 5

Question

use the Zero function to identify and type the value of the one real solution. Round your answer to the hundredths place.

Answer 1

f(x) = x³ - x² + 5

 

To find the root, set f(x) = 0:

 

0 = x³ - x² + 5

 

Refer to the following video on YouTube for a tutorial on finding the roots of a polynomial using a TI-85 calculator:

 

https://search.yahoo.com/yhs/search;_ylt=A0LEVjdBEcJWvHIA0hQnnIlQ;_ylu=X3oDMTEwNzJpNmJwBGNvbG8DYmYxBHBvcwMxBHZ0aWQDBHNlYwNyZWwtYm90?p=zero+function+graphing+calculator&ei=UTF-8&hsimp=yhs-001&hspart=mozilla&fr2=rs-bottom%2Cp%3As%2Cv%3Aw%2Cm%3Aat-s&fr=yhs-mozilla-001

 

Follow the procedure.  In this case, your function has only one real root at x ≅ -1.43 (rounded to the hundredths place).