1. Two vehicles start at time t = 0 from the same point A and travel along a straight line so that at each moment t the distance between the second vehicle and A equals the square of the distance between the first vehicle and A. After t = 3 hours, the first vehicle is moving at 3 kilometers per hour and is 9 kilometers away from A. What is the speed, in kilometers per hour, of the second vehicle at t = 3 hours?
|
A. 9 |
B. 18 |
C. 27 |
|
D. 54 |
E. 81 |
2. What is the largest possible subset of R that can be a domain for the real-valued function f(x) = (x3-x)1/2 ?![]()
|
A.
|
B.
|
C.
|
|
D.
|
E.
|
3. What is the first term of the arithmetic sequence whose 8th and 26th terms are 20 and 56 respectively?
|
A. 1 |
B. 2 |
C. 6 |
|
D. 8 |
E. 9 |
4. What is the graph of x2- 6y2 = 0 ?
|
A. A hyperbola |
B. The union of two intersecting straight lines |
C. A point |
|
D. An ellipse |
E. A line through the origin |
5. Suppose that over the time period 1970-1990 the population of Central City at time t is proportional to bt for some b > 0. If the population of Central City was 36,000 inhabitants in 1970 and 48,000 inhabitants in 1980, what will the population of Central city be in 1990?
|
A. 56,000 |
B. 58,000 |
C. 60,000 |
|
D. 62,000 |
E. 64,000 |
6. The five graphs below have equal scales on the x and y axes. Which one could be the graph of y = 3x4 - 4x3 ?
|
A
|
B
|
C
|
|
D
|
E
|
7. For what value of p does 122p-1 = 5(3.7)p ?
|
A. (ln 5 - ln 12)/(ln 3.7 - ln 12) |
B. (ln 5 + ln 12)/(2 ln 12 - ln 3.7) |
C. (ln 12)/(2 ln 12 - 5 ln 3.7) |
|
D. (ln 12)/(ln 12 - 5 ln 3.7) |
E. (ln 12 - ln 5)/(2 ln 12 + ln 3.7) |
8. Consider the ellipse centered at (2,-1) with axes as shown in the figure below:

Its equation is
|
A. 4x2+y2+16x-2y+13 = 0 |
B. x2+4y2-4x+8y+4 = 0 |
C. x2+4y2+4x-8y+4 = 0 |
|
D. 4x2+y2-16x-2y+13 = 0 |
E. 4x2+y2-16x+2y+13 = 0 |
9. What are all the asymptotes of the graph of xy + y = (x - 2)2 ?
|
A. x = 0 and y = 0 |
B. x = -1 and y = 0 |
C. x = -1 and y = 5 - x |
|
D. x = -1 and y = x - 5 |
E. x=-1, y=0, and y=x-5 |
10. Which of the following is an equation of the ellipse with center (-2,1), major axis running from (-2,6) to (-2,-4), and focus at (-2,5) ?
|
A. (x-2)2/25+(y+1)2/16=1 |
B. (x+2)2/16+(y-1)2/25=1 |
C. (x-2)2/9+(y+1)2/25=1 |
|
D. (x+2)2/9+(y-1)2/25=1 |
E. (x-2)2/25+(y-1)2/9=1 |
11. The number of solutions to the following system of equations is,
y2 û xy - |x|y + x|x| = 0
x2 + y2 = 1
|
A. 0 |
B. 1 |
C. 2 |
|
D. 3 |
E. 4 |
12. Which of the following subsets of
is the largest possible domain for the real-valued function
(x2- x)1/2?
|
A. |
B. |
C. |
|
D. |
E. |
13. The graph of 9x2 - 54x + 4y2 + 16y + 61 = 0 is
|
A. a circle with radius 6 |
B. a hyperbola centered at (2,3) |
C. a hyperbola centered at (3,-2) |
|
D. an ellipse centered at (2,3) |
E. an ellipse centered at (3,-2) |
14. What is the solution set for the inequality x + 1 <= (6/x)?
|
A. |
B. |
C. |
|
D. |
E. |
15. One of the roots of the equation x3 - 7x2 + 25x - 39 = 0 is 3. What are the other 2 roots of this equation?
|
A. -1 and 5 |
B. -1 and 13 |
C. 2-sqrt(17) and 2+sqrt(17) |
|
D. 2 - 3i and 2 + 3i |
E. 3 - 2i and 3 + 2i |
16. If z is the complex number such that (2 - i)z + 4 - 3i = 3iz, then z =
|
A. -1 - (11/10)i |
B. -1 - (1/2)i |
C. -(1/3) + (5/6)i |
|
D. (1/5) - (11/10)i |
E. (3/4) - (7/4)i |
17. Which of the following most closely resembles the graph of y = x2/(x-1)?
|
A
|
B
|
C
|
|
D
|
E
|
|