State whether the graph is or is not that of a function.
A. Yes
B. No
Answer: A
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Solve. Graph the solution on a number line, and express it in interval notation.x + 
? 
A. x < 
, 
B. x ? 
, 
C. x ? 
, 
D. x > 
, 
The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the system, if it exists.
A. x = -4, y = 4, z = 0 B. x = 0, y = 4, z = -4 C. x = 4, y = 4, z = -4 D. x = -4, y = 0, z = 4
A movie theater would like to use a survey to determine which factors are most important to those who come to their theater. Which of the following procedures would be most appropriate for obtaining a statistically unbiased sample? ? A. Survey a random selection of people passing by the theater in the mall in front of the theater. B. Survey a random selection of shoppers in the mall. C. Survey a random selection of people who are leaving the theater after watching a movie. D. Induce people to answer survey questions by offering discount coupons for various city events, including the movie theater.
What will be an ideal response?
Identify which of the graphs could be the graph of a polynomial function.f(x) = x3 + 2x2 - 5x - 6
A. 
B. 
C. 
D. 