Answer:

Step-by-step explanation:
We want to create a third degree polynomial function with one zero at three.
In other words, we want to find a polynomial function with roots x=3 , multiplicity, 3.
Since x=3 is a solution, x-3 is the only factor that repeats thrice.

We expand to get:


This simplifies to:

See attachment for graph.
 
        
             
        
        
        
I think the best value for x is -9 because 6 x -9 = 54, minus 8 equals -44.
        
                    
             
        
        
        
A:  38.4 - 25 = 13.4
      13.4 + 32.65 = $46.05
B:  50.15 - 32.65 =  17.5
         17.5 + 25 =  42.5 mph
        
             
        
        
        
Answer:
67
Step-by-step explanation:
d(n) = 4n + 2 
= 4(5) + 2
=22
t(d(n)) = 3(22) + 1
= 67