+0  
 
+1
175
3
avatar+956 

How many critical numbers are there for f(x) = (x-1)^7 

 

a) 1 

b) 5 

c) 6 

d) 7 

 

I chose 1, am I correct?

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

Correct

 

f'(x)  = 7 (x - 1)^6

Set to 0

 

7 ( x - 1)^6  =  0

(x - 1)^6  = 0

So....x  = 1 is a critical number

 

cool cool cool

CPhill  Apr 11, 2018
 #2
avatar+956 
0

x =1 is a critical number, but how many are there is the question.

Julius  Apr 11, 2018
 #3
avatar+92367 
+2

Sorry, Julius....  I meant to say that  x  = 1   is the only critical number  !!!

 

 

cool cool cool

CPhill  Apr 11, 2018

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