Determine whether the graph is the graph of a function.
A. Yes
B. No
Answer: A
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Determine the coordinates of the vertex by completing the square.f(x) = x2 + 8x
A. (-4, -16) B. (16, -4) C. (-16, 4) D. (4, -16)
Write the sum using summation notation, assuming the suggested pattern continues.-3 + 6 + 15 + 24 + ... + 132
A. 
B. 
C. 
D. 
Solve the problem.Four boys and three girls are seated, in a row, at random, to watch a play. What is the probability thata) a girl is seated at each end of the row?b) one of the boys is seated in the middle seat?c) boys and girls are seated alternately?
A. a) 
b) 
c) 
B. a) 
b) 
c) 
C. a) 
b) 
c) 
D. a) 
b) 
c) 
Solve the problem.The revenue for a small company is given by the quadratic function 
where t is the number of years since 1998 and r(t) is in thousands of dollars. If this trend continues, find the year after 1998 in which the company's revenue will be $2157 thousand. Round to the nearest whole year.
A. 2016 B. 2007 C. 2008 D. 2009