Graph the parabola described.Vertex at (0, 0); Directrix the line x = -3
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.A cancer patient undergoing chemotherapy is injected with a particular drug. The function 
gives the number of milligrams D of this drug that is in the patient's bloodstream h hours after the drug has been administered. How many milligrams of the drug were injected? To the nearest milligram, how much of the drug will be present after 2 hours?
Fill in the blank(s) with the appropriate word(s).
Find the domain of the rational function.h(x) = 
A. {x|x ? 0} B. all real numbers C. {x|x ? 7} D. {x|x ? -7}
Use the power rule and the power of a product or quotient rule to simplify the expression.
3
A. 
B. - 
C. - 
D. - 
Solve the problem.The logistic growth model 
represents the population of a bacterium in a culture tube after t hours. What was the initial amount of bacteria in the population?
A. 46 B. 50 C. 45 D. 44