Subtract 1/9 - 9 to isolate the x term on the left side
        
             
        
        
        
9514 1404 393
Answer:
   {x | x is a real number}
Step-by-step explanation:
The domain of any polynomial function is "all real numbers."
 
        
             
        
        
        
Step-by-step explanation:
Letthenumberofpensbexand
numberofpencilsbey
then
x+y=16ory=16−x
andtheirvalue
8x+1.5y=50
8x+( 
2
3
 
 )(16−x)=50
8x+24−( 
2
3
 
 )x=50
8x−( 
2
3
 
 )x=50−24
( 
2
13x
 
 )=26∴x=4
theny=16−x=16−4=12
 
        
             
        
        
        
Answer:
yes it is a function 
Step-by-step explanation:
You have to take the numbers and see if any of them are the same in the X column if their are some of the same numbers you only write the number once. than you connect the numbers to the given output. If any numbers have 2 outputs it is not a function.