Answer:
line of symmetry , x = 3
Step-by-step explanation:
Standard form of quadratic equation  is y = ax^2 + bx + c, where a, b, and c equal all real numbers. You can use the formula x = -b / 2a to find the line of symmetry.

a = 1, b = -6, c = -16
Line of symmetry is ,
                            
 
        
             
        
        
        
Find the area of the total circle and when you find that area, multiply it by 145/360 for that is how much of the circle that area is.
Area of circle,  r^2 and 13.69 times 3.14 is 42.9866. Then multiply by 145/360 to get about 17.3 inches squared.
r^2 and 13.69 times 3.14 is 42.9866. Then multiply by 145/360 to get about 17.3 inches squared.
 
        
             
        
        
        
True
True
False since it would be 16.28
        
                    
             
        
        
        
The slope of the line can be defined as y = mx + b, where m is the slope
To find the slope, one will need to use the expression Δy/Δx (y final - y initial)/(x final - x initial) 
For this problem, that equals 1/3 
Now we will use the point slope form
(y - y initial) = m (x - x initial):
y + 1 = 1/3 (x - 2) 
y = 1/3x - 5/3