SOLUTION: Use the Intermediate Value Theorem to show that the polynomial f(x)=x3+x2−3x+9 has a real zero between −4 and -2

Algebra ->  Graphs -> SOLUTION: Use the Intermediate Value Theorem to show that the polynomial f(x)=x3+x2−3x+9 has a real zero between −4 and -2      Log On


   

Question 1176783: Use the Intermediate Value Theorem to show that the polynomial f(x)=x3+x2−3x+9 has a real zero between −4 and -2
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

Calculate the values of the given polynomial at both end-points of the interval.


If the values are of different signs, you can apply the Intermediate Value Theorem and to state
that the polynomial has a real zero inside the given interval.