Answer:
I think the answer (-2, 6)
 
        
             
        
        
        
Answer: peter got 11 right and 4 wrong
Step-by-step explanation: So when he answers 11 answers correctly he gains 33 points so he loses 4 points from the remaining 4 wrong answers.
 
        
             
        
        
        
This is a quadratic equation, which is also a polynomial.  Polynomials all have the domain (-infinity, +infinity).
As for the range:  You can see from the graph that the smallest y-value is -2.  Thus, the range is [-2, infinity).
 
        
             
        
        
        
Answer:
12
 trust me it works i just took the test.
 
        
             
        
        
        
Answer:
There are 26 possible way to determine two  distinct integers whose sum is 27.
Step-by-step explanation:
To find : The number of ways a computer can randomly generate one or more such integers from 1 through 30. Two distinct integers whose sum is 27.
Solution : 
We have given the numbers from  1,2,3,4......,29,30.
In order to get two distinct numbers having the sum 27,
There are the possibilities : 
1+26=27
2+25=27
3+24=27
......
24+3=27
25+2=27
26+1=27
The maximum number taken is 26.
So, There are 26 possible way to determine two  distinct integers whose sum is 27.