+0  
 
0
255
3
avatar+1489 

i think its just this one

 May 16, 2019
 #1
avatar+28357 
+2

The one you've chosen certainly shows positive function values, but there is another region also.  Note that positive function values occur where the y-values are positive.

 May 16, 2019
 #2
avatar+1489 
+1

is it (-3,1) ?

jjennylove  May 16, 2019
 #3
avatar+28357 
+2

Correct!

Alan  May 16, 2019

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