hookes law gives the equation F=kx where F is the elastic force and k is the constant and x or small e is extension if we draw a graph you'll see that the graph increases by the same ratio every single time hence giving a straight line show that they are F and x are propotional to a certain limit 
 
        
                    
             
        
        
        
Answer:
its open you never know tho 
Step-by-step explanation:
 
        
             
        
        
        
What? Add more detail please