

1. 
State the domain and range of the relation. 





A. 
All real numbers are included in the domain, and 3 is included in the range. 
B. 
3 is included in the domain, and 3 is included in the range. 


C. 
All real numbers are included in the domain and the range. 
D. 
3 is included in the domain, and all real numbers are included in the range. 


Hint 


2. 
If j(x) = x^{2} + 1, find j(a + 1). 


A. 
a^{2} + 2a + 2 
B. 
a^{2} + a + 1 


C. 
a^{2} + a + 2 
D. 
a^{2} + 2a + 1 


Hint 


3. 
State the domain of the function 


A. 
all real numbers except 0 
B. 
all real numbers except 0 and 3 


C. 
all real numbers except 0, 1, and 3 
D. 
all real numbers except 3 


Hint 


4. 
State the domain and range of the relation. 





A. 
The domain includes negative real numbers. The range includes all real numbers. 


B. 
The domain and the range include all real numbers. 


C. 
The domain includes all real numbers. The range includes all positive real numbers. 


D. 
The domain includes just positive real numbers. The range includes all real numbers. 


Hint 


5. 
Find f(2b^{2}) for f(x) = x^{2} – 4x 


A. 
4b^{2} 
B. 
2b^{4}  8b^{2} 


C. 
4b^{4}  8b^{2} 
D. 
4b^{2}  8b^{8} 


Hint 

