SOLUTION: If {{{f(x)= x(x+1)(x-4)}}}, use interval notation to give all values of x where {{{f(x)>0}}}.

Algebra ->  Inequalities -> SOLUTION: If {{{f(x)= x(x+1)(x-4)}}}, use interval notation to give all values of x where {{{f(x)>0}}}.      Log On


   

Question 75105This question is from textbook Alegbra & Trig w/Geometry
: If f%28x%29=+x%28x%2B1%29%28x-4%29, use interval notation to give all values of x where f%28x%29%3E0. This question is from textbook Alegbra & Trig w/Geometry

Answer by ichudov(507) About Me  (Show Source):
You can put this solution on YOUR website!
Look at the graph
graph%28+300%2C+300%2C+-2%2C+6%2C+-15%2C+10%2C+x%2A%28x%2B1%29%2A%28x-4%29+%29
x < -1 : f(x) < 0
-1 < x < 0 : f(x) > 0
0 < x < 4 : f(x) < 0
4 < x : f(x) > 0