Precalculus · Problem 3.1.27

Polynomial Functions — Stitz & Zeager

Mathematics — Precalculus · intermediate-value-theorem

Problem

Use the Intermediate Value Theorem to prove that

f(x) = x^3 - 9x + 5

has a real zero in each of the following intervals:

[-4, -3]

[0, 1]

and

[2, 3]