Answer:
Option C is correct.
The equation  represents the function.
 represents the function.
Step-by-step explanation:
Using slope intercept form to find the equation of line :
For any two points  and
 and   the equation of line is given by:
 the equation of line is given by:
 ......[1] ;where m is the slope given by:
 ......[1] ;where m is the slope given by:

Consider any two points from table :
let (4, 2) and (0, 4) be any two points.
calculate slope:


Now, substitute in equation [1]  we have:

Distributive property i.e,  

Add both sides 2 we get;

Simplify:

Since, y= f(x)

therefore, the equation  represents the function.
 represents the function.
 
        
             
        
        
        
The answer is 1/2 the last one
        
                    
             
        
        
        
B is the correct answer 12
        
             
        
        
        
Answer:
π
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Q + S = 360 - 55 - 45 = 260
Q = S
=> Q = 260/2 = 130
C is correct