Evaluate 7x - 1 for x = - 2.
A. - 16
B. - 17
C. 18
D. - 15
E. 11
Answer: D
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Solve the problem.Find the point on the curve x = 4 sin t, y = cos t, - 
? t ? 
, closest to the point 
. (Hint: Minimize the square of the distance as a function of t.)
A. 
B. (-4, 0)
C. 
D. (4, 0)
Solve the problem.The supply function for a product is p(x) = 
x2 + 50, where x is the number of thousands of units a manufacturer will supply if the price is p(x) dollars. Find the inverse of this function.
A. p-1(x) = 
+ 50
B. p-1(x) = 
C. p-1(x) = 3
- 50
D. p-1(x) = 3
Solve the problem.A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 51 marbles in it. At least how many green marbles does it have?
A. At least 34 green marbles B. At least 26 green marbles C. At least 18 green marbles D. At least 17 green marbles
Write an inequality of the form 
or of the form 
so that the inequality has the given solution set.[-3, 9]
A. 
? -3
B. 
? 9
C. 
? 6
D. 
? 6