Use the given graph of the quadratic function f to write its formula as 
.
A. f(x) = 
(x + 3)2 - 4
B. f(x) = (x - 3)2 - 4
C. f(x) = 2(x - 3)2 - 4
D. f(x) = 
(x - 3)2 - 4
Answer: D
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Decide whether the statement makes sense. Explain your reasoning.A school district decides to add new teachers after a new school opens in the district. They use the Jefferson apportionment method to determine how many teachers each school should get. They are surprised to find that as a result of adding the new school, one of the existing schools loses a teacher.
What will be an ideal response?
State whether you think the difference between what occurred and what you would expect by chance is statistically significant.Of the people taking the medication, 38 out of 100 noticed improvement in their arthritis. Of the people taking the placebo, 35 out of 100 noticed improvement in their arthritis.
A. Not statistically significant B. Statistically significant
Solve the problem.If a parking ramp attendant can wait on 5 vehicles per minute, and vehicles are leaving the ramp at x vehicles per minute, then the average wait in minutes for a car trying to exit is given by 
Solve the inequality 
to determine the exit rates x that would result in average wait times between 4 and 9 minutes.
A. 4.8 ? x ? 4.9 B. 4.7 ? x ? 5.0 C. 0.7 ? x ? 1.5 D. x ? 4.9 or x ? 4.8
Multiply.(4x - 4)(x - 9)
A. x2 - 40x - 41 B. 4x2 - 41x + 36 C. x2 + 36x - 40 D. 4x2 - 40x + 36