Without graphing, determine whether the graph of the quadratic function opens up or opens down.f(x) = -3 + 5x2 - 4
A. opens down
B. opens up
Answer: B
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Solve the problem.Attendance has been increasing for a minor league hockey team as they have had more success. The percentage of the seats filled in different years is given in the table. Let p be the percentage of seats filled each year that is t years since 2000.
Predict the percentage of seats filled in 2010.
A. 73.28% of seats filled B. 22% of seats filled C. 100% of seats filled D. 83.91% of seats filled
The histogram shows the scores of each participant in a game from a total of 100 participants. Use the histogram to answer the question. 
The greatest number of participants is within which category?
A. 60-79 B. 60-69 C. 40-59 D. 80-99
Factor.9x4 + 27x2 + 20
A. (3x2 + 5)(3x2 + 4) B. (3x2 + 20)(3x2 + 1) C. (3x2 - 5)(3x2 - 4) D. (9x2 + 5)(x2 + 4)
Identify the correspondence.The two triangles shown below are congruent. List the vertices corresponding to A, B ,and C in order. 
A. X, Y and Z B. Y,X and Z C. Z, X and Y D. Y, Z and X