+0  
 
-1
642
1
avatar+4116 

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 Nov 18, 2018
 #1
avatar+128079 
+1

We have a horizontal line.....therefore....the slope   = 0

 

This can be confirmed by the "0"  in the linear function

 

y = 0r + 40

 

 

cool cool cool

 Nov 18, 2018

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