Decide whether or not the set of ordered pairs defines a function.{(-3, -3), (-1, 5), (4, -7), (5, 3)}
A. No
B. Yes
Answer: B
Mathematics
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If the recommended adult dosage for a drug is D (in mg), then to determine the appropriate dosage c for a child of age a, pharmacists use the equation c = 0.0417 D(a + 1). Suppose the dosage for an adult is 400 mg.
(a) Find the slope. What does it represent? (b) What is the dosage for a newborn?
Mathematics
The function f is one-to-one. Find its inverse.f(x) = x2 + 2, x ? 0
A. f-1(x) = 
- 2, x ? 0
B. f-1(x) = 
, x ? 2
C. f-1(x) = 
, x ? -2
D. f-1(x) = 
- 2, x < 0
Mathematics
Simplify the expression.5x + 7(x + 1) + 1
A. 12x + 6 B. 12x - 6 C. 12x + 8 D. -2x + 8
Mathematics
Use the graph to find the oblique asymptote, if any, of the function. 
A. y = x + 2 B. y = 5 C. no oblique asymptote D. y = 5x + 2
Mathematics