Question

Help!!! Medal to correct answer
True or false?
The value 4 is an upper bound for the zeros of the function shown below. f(x)4x^3-12x^2-x+15

Answer 1

It may be an upper bound but I think it is not the least upper bound.
Are you looking for the least upper bound? @TeddyShot

Answer 2

No its just a true or false question

Answer 3

If it is upper bound then its true

Answer 4

The roots are x=-1, 1.5, and 2.5

Answer 5

It was true.

Answer 6

Yes, it is true because the roots are less than 4.