The graph of the function f(x) = -(x + 3)(x-1) is shown below ?
which statement about the function is true?
the function is positive for all real values of x where x< -1.
the function is negative for all real values of x where x < -3 and where x> 1.
ne function is positive for all real values of x where x < 0
the function is negative for all real values of x where x < -3 or x> -1