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The table of variation of reference functions

Consider the function f(x)=x3f(x)=x^3 . What is the missing value?  


Consider the table of value for f(x)=xf\left(x\right)=-\sqrt{x} . What is the missing value? 


Observe the table of values. Identify the missing value:


Observe the table of values. Identify the missing value. 

Observe the table of values. Identify the missing value.  


Consider the rational function f(x)=x2x1f\left(x\right)=\frac{x^2}{x-1} . Identify the missing value.  


Consider the rational function f(x)=1x2f\left(x\right)=\frac{1}{x^2} . Identify the missing value.


Consider the function f(x)=x3f(x)=-x^3 . What is the missing value?  


Consider the table of value for f(x)=xf\left(x\right)=-\sqrt{x} . What is the missing value? 


Observe the table of values. Identify the missing value.