The slope should be one over two.
        
             
        
        
        
Answer:
B
Step-by-step explanation:
 
        
             
        
        
        
D. 50 mph 
Going upstream takes longer because of the flow of the water
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The given interval : x = 0 to x = 10
Length of interval = 10 - 0
                               = 10

⇒ Number of equal intervals = 5

