+0  
 
0
60
2
avatar+708 

is it (1,4) ?

 

i think its the 2 i have selected?

 Feb 21, 2019
 #1
avatar+4449 
+2

(6,8] is correct

 

[-6,-4) is not

 Feb 21, 2019
edited by Rom  Feb 21, 2019
 #2
avatar+98130 
+2

(1, 4) is correct for the first one

 

Look at the second graph closely

 

The function is positive where it is above the x axis

 

Note that this occurs at  (-4, 0)  and (6, 8 ]

 

 

cool cool cool

 Feb 21, 2019

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