Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval. x4 + x − 9 = 0, (1, 2)

Question

on the closed interval [1,2] , f(1)=

and f(2)=

Answer 1

Determine f(1) = ?

Determine f(2) = ?

If f(1) is opposite in sign from f(2) then a zero exists between 1 an 2.