Any number raised to power of 0 is 1.
In (-4x)^0, because of the parenthesis, the whole number is being raided to 0, which gives 1.
But in -4x^0, only x is being raised to 0, thus -4x^0 = -4(1) = -4.
        
             
        
        
        
Answer:
Its either answer one or two. I believe it's answer one.
 
        
                    
             
        
        
        
Distance=speed times time
distance/time=speed
distance=538
time=9 and 15mins
60mins=1hr
15/60=1/4=0.25
time=9.25hr
distance/time=538/9.25=58.162mph
about 58mph
        
                    
             
        
        
        
Do you have a picture of the graph,  I cant help u with out it. :)