SOLUTION: I also need help with this problem: Use interval notation to indicate the intervals on which the graph of f lies below the x axis where f(x) = x(x+1)(x+3).

Algebra ->  Test -> SOLUTION: I also need help with this problem: Use interval notation to indicate the intervals on which the graph of f lies below the x axis where f(x) = x(x+1)(x+3).      Log On


   



Question 1000689: I also need help with this problem:
Use interval notation to indicate the intervals on which the graph of f lies below the x axis where f(x) = x(x+1)(x+3).

Answer by ikleyn(52921) About Me  (Show Source):
You can put this solution on YOUR website!
.
The graph of  f  lies below the  x-axis in the semi-infinite interval  (-infinity,-3%29)  and in the interval  (-1, 0).

For your convenience the plot of  f  is below.



    Figure. Plot f(x) = x*(x+1)*(x+3)