Determine whether the following rule defines y as a function of x.The x, y pairs: {(-9, 1), (-9, 3), (2, -2), (4, -1), (9, -8)}
A. Function
B. Not a function
Answer: B
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Solve the problem.After the semi-eulerization of a graph, the number of odd vertices is
A. the same as the number of even vertices of the graph. B. the same as the number of odd vertices before the semi-eulerization. C. not possible to determine without knowing the specific graph. D. 0. E. 2.
Simplify the exponential expression using the rules for exponents. 
-2
A. 
B. 
C. 
D. 
Solve the problem.John has received scores of 85, 88, 87, and 90 on her algebra tests. What is the minimum score he must receive on the fifth test to have an overall test score average of at least 87? (Hint: The average of a list of numbers is their sum divided by the number of numbers in the list.)
A. 83 B. 86 C. 85 D. 84
Simplify. Assume that all variables represent positive real numbers.9
- 7m2p
A. 2
B. 2m2p
C. Cannot be simplified
D. 16mp2