Diagnostic Examination

Georgia O'Keeffe's Line and Curve

1. If you divide 12ab3 by 4b, the answer is
(a) ab2
(b) ab3 - b
(c) 8b2
(d) 0
(e) 3ab2
2.
Simplify
(3 a2 b-3)-4

(12ab3)-5
(a) 48a-13b-27
(b) 96a-3b27
(c) 96a-13b27
(d) All of the other answers are incorrect.
(e) 48a-3b27
3.
Evaluate
( 1

x
+ 3 ) ( 5 + 2

x2
).
(a)
5

x
+ 15 + 2

x3
+ 6

x2
(b)
5

x
+ 6

x2
(c)
4

x
+ 6

x2
(d) All of the other answers are incorrect.
(e)
11

x
+ 15 + 2

x2
4. The distance from the point (1,2) to the point (2,1) is
(a) 3
(b) 2
(c) 31/2
(d) 21/2
(e) 3(21/2)
5. A triangle has a side of length 3, a side of length 4, and a side of length x. The possible values of x are
(a) x = 5
(b) x > 7
(c) 0 < x
(d) 0 < x < 5
(e) 1 < x < 7
6. The line containing the points (1,1) and (1,-1) is perpendicular to the line
(a) y = 5
(b) y -1 = x -1
(c) y = 2x +1
(d) x = 5
(e) y = -x -1
7. If 2(2x-3) + 5(x + 1) = 6x-7, what is x?
(a) x = -2
(b) x = 8
(c) x = -4
(d) x = 4
(e) x = 2
8. If x = 3, find the smallest value of y which satisfies y2x + 3yx2 + 54 = 0.
(a) -6
(b) 3
(c) -3
(d) 0
(e) There is no smallest value.
9. Find the largest solution of x3 + 4x2 + 3x = 0.
(a) x = -2
(b) x = 0
(c) x = -3
(d) x = -1
(e) x = 1
10. 163/2 is
(a) 83
(b) 64
(c) 128
(d) 8
(e) 32
11. What is log3(35)?
(a) e
(b) 1/3
(c) 3e
(d) 5
(e) 1/5
12. log(x2 - 2x +1) > log(25) reduces to
(a) x < -4
(b) x > 6
(c) x < -4 or x > 6
(d) x < 6
(e) x > -4
13. If f(x) = x + 5, what is f(3)?
(a) 8
(b) 9
(c) 3
(d) 2
(e) 5
14. The function f(x) = [x2 -1]1/2 has domain
(a) The set of all numbers x such that 1 is less than or equal to x
(b) The interval [-1,1]
(c) The set of all numbers x such that either x is less than or equal to -1 or 1 is less than or equal to x
(d) The set of all numbers x such that either x < -1 or 1 < x
(e) The set of all numbers x such that 1 < x
15. If f(x) = 3x2 + 4 and g(y) = 2y1/2 + 5, what is g(f(2))?
(a) 10
(b) 9
(c) 20
(d) All of the other answers are incorrect.
(e) 13
16. The expression -18 < -6x < 12 is equivalent to which of the following?
(a) -2 > x > -3
(b) All of the other answers are incorrect.
(c) 3 > x > 2
(d) 3 > x > -2
(e) 2 > x > -3
17. The inequality x3 < 2x2 -x reduces to
(a) x < 1
(b) x < 0 or x is not equal to 1
(c) x > 0
(d) x < 0
(e) x > 1
18.
The inequality
x2- 2x + 1
x2 + x + 1
> 0
is equivalent to:
(a) x < 0
(b) x < 1
(c) x > 1
(d) x > 0
(e) x is not equal to 1
19. If 4x - y = 1 and 2x + y = 5, find x and y.
(a) x = 4 and y = 1
(b) x = 0 and y = 6
(c) x = -1 and y = 5
(d) x = 0 and y = 3
(e) x = 1 and y = 3
20. If 4x - y = 1 and 2x + y = 5, then 3xy is
(a) 6
(b) Cannot be determined
(c) 0
(d) 3
(e) 9
21. If y + 4x - 5 = 0 and y = x2, then there is a solution with y given by
(a) Cannot be determined
(b) y = 25
(c) y = 20
(d) y = 30
(e) y = 0
22. The radian measure of an angle of 60 degrees is
(a) pi/4
(b) pi
(c) pi/3
(d) pi/2
(e) 2(pi/3)
23. If sin(a) = 1, cos(b) > 0, and sin(b) = 1/2, then sin(a + b) is
(a) 3/2
(b) 1/2
(c) 2/3
(d) 2/(31/2)
(e) 31/2/2
24. A triangle has sides of length 5, 5 and 8. What is the sine of its smallest angle?
(a) 4/5
(b) 8/5
(c) 5/8
(d) 3/8
(e) 3/5