+0  
 
+1
145
1
avatar+956 

If f'(x) > 0 for all x, then 

 

a) f(x1) > f(x2) for every x1 > x2 

b) f(x1) < f(x2) for every x1 > x2

c) f(x1) > f(x2) for every x1 < x2 

d) f(x1) = f(x2) for every x1 < x2 

Julius  Apr 11, 2018
 #1
avatar+92367 
+2

If f'(x) > 0  for all x, then the function must be always increasing from left to right

 

Thus...if  x1 > x2

Then f(x1) > f(x2)

 

So...

 

a) f(x1) > f(x2) for every x1 > x2

 

 

cool cool cool

CPhill  Apr 11, 2018

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