Question 1025457: A) Find the y intercepts B) Find the x intercepts and C) find the intervals of x where f(x) > 0 and those where f(x) <0. Do not sketch the graph.
f(x) = (x-5) (x+4) (x-3)
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! A) When  ,
B) 
and
and
C) Break up the number line into regions using the x-intercepts,
Region 1 : (  , )
Region 2 : (, )
Region 3 : (, )
Region 4 : (, )
Pick a point in each region and test the function to see if its greater than or less than zero.
Region 1 : 
Region 2 :
Region 3 : 
Region 4 : 
So then,
(  ) , 
( ) 
( ),
( ),
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