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avatar+976 

i think its just this one

 May 16, 2019
 #1
avatar+28125 
+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+976 
+1

is it (-3,1) ?

jjennylove  May 16, 2019
 #3
avatar+28125 
+2

Correct!

Alan  May 16, 2019

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