Write the equation of the axis of symmetry.f(x) = -(x + 5)2 + 7
A. x = -5
B. x = 25
C. x = 7
D. x = 6
Answer: A
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You sell books, and the price you charge a single customer for each book depends on the number purchased. If a customer orders B books then you charge 
dollars for each book. You have to pay the wholesaler $162 for each book you sell.
? A: Write a formula that gives your income I, in dollars, if you sell B books. (For income, you do not consider the price you pay for each book.)B. Write a formula that gives your net profit P, in dollars, if you sell B books. (For net profit you must consider both income and cost.)C: What number of books sold will provide you with the most profit? What will be an ideal response?
Graph the curve over the given interval together with its tangent at the given value of x. Graph the tangent with a dashed line.y = cot(x), -2? ? x ? 2?, x = 
A. 
B. 
C. 
D. 
Use the trapezoidal rule and Simpson's rule to approximate the value of the definite integral. Compare your result with the exact value of the integral. Please give the answer to four decimal places.
?
?
Trapezoidal rule: __________
?
Simpson's rule: __________
?
Exact value: __________
What will be an ideal response?
Find the value(s) of the function, subject to the system of inequalities.Find the minimum of 
subject to:x ?0, y ?0, x + y ? 1.
A. 64 B. 23 C. 41 D. 46