Question

Using only the values given in the table for the function f(x) = –x3 + 4x + 3, what is the largest interval of x-values where the function is increasing?

Answer 1

The answer
is -1 and 1 in e2020

Answer 2

the largest interval of x values where f(x) is increasing is (-1,1).

Explanation:

`f(x)=-x^3+4x+3`

the domain of f(x) is all real numbers.

As we can conclude from the table that the function f(x) is decreasing from (-3, -1) and the function is increasing from (-1, 1) .

Graphically we can also show this that for the x-values in (1,-1) function is increasing.