Answer:
C
Step-by-step explanation:
 
        
                    
             
        
        
        
I think it’s either b or c. But I’m leaning more towards c
        
             
        
        
        
Simple Pythagorean theorem, And if you double check Tamara's work she is correct. Therefor B is the correct answer. 
        
                    
             
        
        
        
On which one do you need help with?
        
             
        
        
        
Answer:

Step-by-step explanation:
The given function is f(x)=x.
If we stretch vertically by a factor of 4 and a translation of 4 units up then the new function becomes

But f(x)=x
We substitute to obtain the equation of g(x) as 
