Answer:
Yes
Step-by-step explanation:
A function is a relation where each input has only one output
The table shown follows this, each input has only one output, therefore it is a function. 
 
        
                    
             
        
        
        
Ax+bx−c=0
Step 1: Add c to both sides.
ax+bx−c+c=0+c
ax+bx=c
Step 2: Factor out variable x.
x(a+b)=c
Step 3: Divide both sides by a+b.
x(a+b)a+b=ca+b
x=ca+b
        
                    
             
        
        
        
1.086 rounded to the nearest whole number is 1
        
             
        
        
        
Value + value = 14 dollars
0.65x + 10-0.40x = 14
0.25x = 4
x = 16 
25-x =9