Answer:
i need more to answer the question
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The Total number of Professors = 48  
Step-by-step explanation:
Given as, 
The total number of Faculty = 136
And the Ratio of Professors to Lecturers = 6 Ratio 11
Now According to question
Professors : Lecturers = 6 : 11
So, Let the Number of Professors = 6x 
And      The Number of Lecturers = 11x
∴ 6x + 11x = 136
   Or,   17x = 136
    Or,      x =  = 8
 = 8 
Hence, the number of Professors = 6 × 8 = 48       Answer 
 
        
             
        
        
        
The first one is not a function due to the rule that there can not be more than one x, such as there is a repeated number 1 , 2 , 1 , 4  There should not be two 
x = 1 terms.
Same the same rule applies to the second option as well as the last.
Your answer is C. or the third option
x= 6, 5, 4, 1
y=6, 4, 6, 2
Hope this Helps