Question

The graph of f(x) = 2*- is shown.For which values of x is f(x) decreasing?JA(-1, 3) (3, 0)(-1, 3)(300)4-1(1, 3) (3, 0)

Answer 1

`\begin{gathered} \text{ The function of the graph}, \\ f(x)=(4)/(x^2-2x-3) \end{gathered}`

From the graph, f(x) decreases from (1, 3) , (3,∞)

Therefore, the correct answer is

`(1,\text{ 3)}\cup(3,\text{ }\infty)`