The answer to that is  2x - 10
        
                    
             
        
        
        
Answer: Logarithmic
Explanation:
This curve is a reflection of the exponential curve over the line y = x, to show that it is the inverse of exponentials. We use logs to help isolate the exponent among other useful properties.
 
        
             
        
        
        
Overestimate because then the gardener could possibly save the left overs in case they get a chance to use it or they could give it to someone who may need it.
        
             
        
        
        
Zenitsu from Demon Slayer