Diagnostic Examination

Georgia O'Keeffe's Line and Curve

1. The equation, 4x2 - 6x + 10 = 0, has
(a) four real solutions
(b) one real solution
(c) two real solutions
(d) three real solutions
(e) no real solutions
2.
Simplify
(3 a2 b-3)-4

(12ab3)-5
(a) All of the other answers are incorrect.
(b) 96a-3b27
(c) 96a-13b27
(d) 48a-13b-27
(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)
11

x
+ 15 + 2

x2
(d)
4

x
+ 6

x2
(e) All of the other answers are incorrect.
4. Find the midpoint of the line segment between (-2,1) and (4,5).
(a) (-1,1)
(b) (3,-1)
(c) (3,3)
(d) (3,1)
(e) (1,3)
5. Which of the following points is closer to the point (1,1) than the point (2,2) is to (1,1)?
(a) (1, 5/2)
(b) (0,1)
(c) (2,0)
(d) (0,2)
(e) (0,0)
6. How many points are in the intersection of y = x2 + 3x + 1 and y = 2x + 5?
(a) 3
(b) 1
(c) 2
(d) infinitely many
(e) 0
7. Find all solutions to x2-3x + 2 = 0.
(a) x = 1 and x = 2
(b) x = 1 and x = -2
(c) x = 1.1 and x = 2.1
(d) x = -1 and x = 2
(e) x = -1 and x = -2
8. If x = 3, find the smallest value of y which satisfies y2x + 3yx2 + 54 = 0.
(a) There is no smallest value.
(b) 0
(c) -6
(d) 3
(e) -3
9. How many real solutions for x are there to the equation x2 + 3x + 8 = 0?
(a) 1
(b) It cannot be determined.
(c) 3
(d) 2
(e) 0
10. If f(x)=2x, find f(3).
(a) All of the other answers are incorrect.
(b) 8
(c) 2
(d) 9
(e) 6
11. log(x) < log(x +1) reduces to
(a) x < 1
(b) 1 < x
(c) x < 0
(d) x < x +1
(e) 0 < x
12. log(x2 - 2x +1) > log(25) reduces to
(a) x > 6
(b) x < -4 or x > 6
(c) x > -4
(d) x < 6
(e) x < -4
13. If g(x) = 5x + 2, what is g(2)?
(a) 10
(b) 14
(c) 12
(d) 16
(e) 11
14. If f(x) = 3x + 3 and g(y) = 2(y + 1) + 5, what is g(f(2))?
(a) 9
(b) 23
(c) 25
(d) All of the other answers are incorrect.
(e) 11
15. If f(x)=3x2 + 3, what is f(f(a))?
(a) 3(3a2 + 3)2 + 3
(b) Not defined.
(c) 3a2 + 3
(d) 0
(e) All of the other answers are incorrect.
16. The inequality   x2 - 2x > -1   reduces to
(a) x > -1
(b) x < -1
(c) x > 1
(d) x is not equal to 1
(e) x < 1
17.
The inequality
x4
x2 +1
> 0
is equivalent to:
(a) x > 1
(b) x is not equal to 0
(c) x > 0
(d) x < 1
(e) x < 0
18. [x2 - 6x + 9]1/2 < | x - 1 | reduces to
(a) x > 2
(b) x < 1
(c) x < 3
(d) x < 2
(e) x > 3
19. If 5x - 6y = 4 and 3x + 4y = 10, find x and y.
(a) x = 2 and y = -2
(b) x = 2 and y = 1
(c) x = -2 and y = 2
(d) x = -2 and y = -1
(e) x = 4 and y = 1
20. If x - y = 4 and 4x - y = 1, then 3xy is
(a) Cannot be determined
(b) 9
(c) 12
(d) 6
(e) 15
21. If y + 4x - 5 = 0 and y = x2, then there is a solution with y given by
(a) y = 25
(b) Cannot be determined
(c) y = 0
(d) y = 20
(e) y = 30
22. The radian measure of an angle of 45 degrees is
(a) 2pi/3
(b) pi
(c) pi/4
(d) pi/2
(e) pi/3
23. Which of the following is correct?
(a) sin(.1)cos(.1) < sin(.1) < cos(.1)
(b) cos(.1) < sin(.1) < sin(.1)cos(.1)
(c) cos(.1) < sin(.1)cos(.1) < sin(.1)
(d) sin(.1) < sin(.1)cos(.1) < cos(.1)
(e) sin(.1) < cos(.1) < sin(.1)cos(.1)
24. If sin(a + b) = 1 and tan(a) = 0, then tan(b) is
(a) 1/2
(b) 1/4
(c) 1
(d) undefined
(e) 0