Diagnostic Examination

Georgia O'Keeffe's Line and Curve

1. Factor   x2 - 5x + 6.
(a) x2 - 5 x + 6
(b) (x - 2)(x + 3)
(c) (x - 2)(x - 3)
(d) (x + 3)(x - 2)
(e) (x + 2)(x + 3)
2.
Simplify
(3 a2 b-3)-4

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

x
+ 3 ) ( 5 + 2

x2
).
(a) All of the other answers are incorrect.
(b)
4

x
+ 6

x2
(c)
5

x
+ 15 + 2

x3
+ 6

x2
(d)
11

x
+ 15 + 2

x2
(e)
5

x
+ 6

x2
4. The distance from the point (1,2) to the point (2,1) is
(a) 2
(b) 21/2
(c) 31/2
(d) 3
(e) 3(21/2)
5. The parabola with equation y = x2 +1 intersects the line y = mx if and only if
(a) m > 0
(b) m < 0
(c) 4 less than or equal m2
(d) 2 less than or equal m
(e) m = 2
6. The circle with equation x2 + y2 - 2y = 0 intersects the line y = mx in two distinct points
(a) if and only if m > 0
(b) for all values of m
(c) for no values of m
(d) if and only if m is not equal to 0
(e) if and only if m < 0
7. If 2(2x-3) + 5(x + 1) = 6x-7, what is x?
(a) x = 8
(b) x = -2
(c) x = 2
(d) x = -4
(e) x = 4
8. If x = 8, find the largest value of y which satisfies y2x + yx2 + 128 = 0.
(a) -8
(b) 8
(c) There is no largest value.
(d) -4
(e) 4
9. Find the largest solution of x3 + 4x2 + 3x = 0.
(a) x = 1
(b) x = -3
(c) x = -2
(d) x = 0
(e) x = -1
10. log(3/2) equals
(a) 3 log(1/2)
(b) log(2) + log(3)
(c) (1/2)log(3)
(d) log(2) - log(3)
(e) log(3) - log(2)
11. log(x) < log(2) reduces to
(a) x is not equal to 2
(b) 10 < x
(c) 0 < x < 2
(d) x < 10
(e) x < 2
12. log(x2 - 2x +1) > log(25) reduces to
(a) x > -4
(b) x < -4
(c) x < -4 or x > 6
(d) x < 6
(e) x > 6
13. If f(x) = x + 5, what is f(3)?
(a) 8
(b) 2
(c) 9
(d) 5
(e) 3
14. If f(x) = 3x + 3 and g(y) = 2(y + 1) + 5, what is g(f(2))?
(a) 11
(b) All of the other answers are incorrect.
(c) 9
(d) 23
(e) 25
15. If f(x) = 3x2 + 4 and g(y) = 2y1/2 + 5, what is g(f(2))?
(a) 13
(b) All of the other answers are incorrect.
(c) 20
(d) 9
(e) 10
16. Let a = -3, b = 5, and c = -1. Evaluate |a - b| - (c - a)
(a) -2
(b) 6
(c) 8
(d) 11
(e) 10
17. The expression | 5x-2 | > 1 is equivalent to which of the following?
(a) x < -1/5
(b) x < 1/5 and x > 3/5
(c) x < -1/5 or x > 3/5
(d) There are no values of x which satisfy this expression.
(e) x < 1/5 or x > 3/5
18. [x2 - 6x + 9]1/2 < | x - 1 | reduces to
(a) x < 3
(b) x < 2
(c) x < 1
(d) x > 3
(e) x > 2
19. If 5x - 6y = 4 and 3x + 4y = 10, find x and y.
(a) x = -2 and y = -1
(b) x = 4 and y = 1
(c) x = 2 and y = 1
(d) x = 2 and y = -2
(e) x = -2 and y = 2
20. If 4x - y = 1 and 2x + y = 5, then 3xy is
(a) 3
(b) 6
(c) 0
(d) Cannot be determined
(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 = 30
(d) y = 20
(e) y = 0
22. The radian measure of an angle of 45 degrees is
(a) pi/3
(b) pi/2
(c) 2pi/3
(d) pi/4
(e) pi
23. Which of the following is correct?
(a) sin(.1)cos(.1) < sin(.1) < cos(.1)
(b) sin(.1) < cos(.1) < sin(.1)cos(.1)
(c) sin(.1) < sin(.1)cos(.1) < cos(.1)
(d) cos(.1) < sin(.1) < sin(.1)cos(.1)
(e) cos(.1) < sin(.1)cos(.1) < sin(.1)
24. If sin(a + b) = 1 and tan(a) = 0, then tan(b) is
(a) 0
(b) 1/4
(c) 1
(d) 1/2
(e) undefined