Answer:
Y=2x-4
Step-by-step explanation:
 
        
             
        
        
        
Answer: A. sqrt of 500.
Step-by-step explanation: If you simplify the sqrt of 500, you will get 10 sqrt of 5
 
        
                    
             
        
        
        
The vertex is (-1, 2).
The equation of parabola:
 where (h, k) is the vertex
 where (h, k) is the vertex
We have h = -1 and k = 2.
Substitute:

 
        
             
        
        
        
-8-5b+7+5b
add +5b to -5b to get 0.
-8+7 = -1
Answer is -1.
        
             
        
        
        
Answer:
The groups walking speed is  or
  or 
Step-by-step explanation:
we know that
To find the speed divide the distance by the time
so

Convert to mixed number
