Answer:
1
Step-by-step explanation:
f(4)=4-2x+5
4-2(4)+5
4-8+5
1
 
        
                    
             
        
        
        
Step-by-step explanation:
Cell Phones Are Full of Bacteria
 
        
                    
             
        
        
        
Answer:
1
Step-by-step explanation:
By order of operations, we first evaluate the parentheses, which is 2 * 1 = 2.  We then evaluate the brackets, which are 3 / 2 =  .  Finally,
.  Finally,  *
 *  =
 =  or 1.
 or 1.
 
        
                    
             
        
        
        
The answer is the third option. 
x and y are both to the first degree so we know it makes a straight line. 
Next check the ordered pairs to see which set are true in the equation.