Sent a picture of the solution to the problem (s).
 
        
        
        
The graph will be discrete because there is no such thing as a partial person to sign up and the booth is set up once each day for sign ups. So the last answer choice is the right one
        
                    
             
        
        
        
the sign would probably be a negative. imagine this - - - - - - and then + + +, cancel out the negatives and plus then you are left with more negatives than positive so the sign will take the negative sign.
 
        
             
        
        
        
Answer:
C)h(x) = x-3
Step-by-step explanation:
To find the inverse of a function, switch the "x" and "y" values, then isolate for "x".
f(x) is the y value.
y = x + 3
x = y + 3   Switch x and y
x - 3 = y     Subtract 3 from both sides to isolate
y = x - 3   Change back to function of h
h(x) = x - 3