A parabola is a curved shape in a graph that has either a maximum or a minimum (which is the fixed point) and any point is equidistant from that fixed point. You can tell it is a parabola because most likely in an equation the x with be squared.
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
 
        
             
        
        
        
Answer: domain: 0 ≤ x ≤ 8
Step-by-step explanation:
Domain is an independent variable with a minimum and a maximum value. Or the starting point (value) to the end point (value)
The time taken by the ball is from 0 to 8 seconds 
The domain of the function represented by the graph will be from the starting time of the ball to the end time. Therefore, In this case, domain will be 
0 ≤ x ≤ 8
 
        
                    
             
        
        
        
A = (a+b)/2
2*A = 2*(a+b)/2 ... multiply both sides by 2
2A = a+b
2A-a = a+b-a ... subtract 'a' from both sides to isolate b
2A-a = b
b = 2A-a
Answer: b = 2A-a
        
             
        
        
        
Answer:
 it's false
the true is -1/2
Step-by-step explanation:
-5/2-2+4=-1/2