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Given f(x)=squarerootof(x−3)f(x)=squarerootof(x−3), what is f(12)f(12)?

Guest Jul 24, 2018

Best Answer 

 #1
avatar+2294 
+1

If \(f(x)=\sqrt{x-3}\), then, in order to evaluate \(f(12)\), replace all instances of x with 12. 

 

\(f(x)=\sqrt{x-3}\) This is the original definition of the function.
\(f(12)=\sqrt{12-3}\) Simplify.
\(f(12)=\sqrt{9}\)  
\(f(12)=3\)  
   
TheXSquaredFactor  Jul 24, 2018
 #1
avatar+2294 
+1
Best Answer

If \(f(x)=\sqrt{x-3}\), then, in order to evaluate \(f(12)\), replace all instances of x with 12. 

 

\(f(x)=\sqrt{x-3}\) This is the original definition of the function.
\(f(12)=\sqrt{12-3}\) Simplify.
\(f(12)=\sqrt{9}\)  
\(f(12)=3\)  
   
TheXSquaredFactor  Jul 24, 2018

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