Diagnostic Examination

Georgia O'Keeffe's Line and Curve

1. If you divide 12ab3 by 4b, the answer is
(a) 3ab2
(b) ab2
(c) ab3 - b
(d) 8b2
(e) 0
2.
Simplify (x3 + 2x2 + 2x + 1)

(x + 1)
(a) x2 + 1
(b) x2 - 2x + 1
(c) x2 + 2x + 1
(d) x2 + x + 1
(e) x2 - x + 1
3.
Evaluate
( 1

x
+ 3 ) ( 5 + 2

x2
).
(a)
11

x
+ 15 + 2

x2
(b)
4

x
+ 6

x2
(c)
5

x
+ 15 + 2

x3
+ 6

x2
(d)
5

x
+ 6

x2
(e) All of the other answers are incorrect.
4. A line with slope 4 contains the point (1,1). The line must also contain the point
(a) (2,4)
(b) (0,0)
(c) (5,2)
(d) (2,5)
(e) (4,2)
5. Find the equation of the line through (-1,1) and (5,2).
(a) x - y - 2 = 0
(b) x - 2y - 1 = 0
(c) x + y = 0
(d) x - 6y + 7 = 0
(e) x - y + 2 = 0
6. The circle with equation x2 + y2 - 2y = 0 intersects the line y = mx in two distinct points
(a) for all values of m
(b) for no values of m
(c) if and only if m is not equal to 0
(d) if and only if m < 0
(e) if and only if m > 0
7. If 3x + 6 = 12, what is x?
(a) All of the other answers are incorrect.
(b) x = 0
(c) x = 4
(d) x = 2
(e) x = -2
8. If x = y and x2y2 - 5xy + 6 = 0, then which of the following is possible?
(a) x2 = 3
(b) x = 3
(c) x2 = 6
(d) x = 6
(e) x = 2
9. How many real solutions for x are there to the equation x2 + 3x + 8 = 0?
(a) 2
(b) 3
(c) It cannot be determined.
(d) 0
(e) 1
10. 163/2 is
(a) 64
(b) 83
(c) 128
(d) 32
(e) 8
11. Which of the following values of x satisfies log2(x) - log2(x+1) = -1?
(a) x = 3
(b) x = 1
(c) x = 1/3
(d) x = 2
(e) x = -1/3
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) 3
(b) 8
(c) 9
(d) 5
(e) 2
14. If f(x) = 3x + 3 and g(y) = 2y + 5, what is g(f(2))?
(a) 30
(b) 7
(c) 23
(d) 9
(e) All of the other answers are incorrect.
15. If f(x)=3x2 + 3, what is f(f(a))?
(a) 3(3a2 + 3)2 + 3
(b) 0
(c) 3a2 + 3
(d) All of the other answers are incorrect.
(e) Not defined.
16. The inequality |x -1| < |2 -x| is equivalent to
(a) x < 3/2
(b) x < 2
(c) 1 < x < 2
(d) 1 < x
(e) x < 1/2
17.
The expression -1 <
1-x2

1+x2
< 1 is satisfied by
what values of x?
(a) All of the other answers are incorrect.
(b) There are no values of x which satisfy this expression.
(c) -1 < x < 1
(d) x not equal to 0
(e) All values of x satisfy this expression.
18.
The inequality
x2- 2x + 1
x2 + x + 1
> 0
is equivalent to:
(a) x < 1
(b) x < 0
(c) x is not equal to 1
(d) x > 0
(e) x > 1
19. If 4x - y = 1 and 2x + y = 5, find x and y.
(a) x = 0 and y = 6
(b) x = 4 and y = 1
(c) x = 1 and y = 3
(d) x = 0 and y = 3
(e) x = -1 and y = 5
20. If 5x-6y = 4 and 3x + 4y = 10, then x/y is
(a) 1
(b) Cannot be determined
(c) 3
(d) 0
(e) 2
21. If y + 4x - 5 = 0 and y = x2, then there is a solution with y given by
(a) y = 20
(b) Cannot be determined
(c) y = 0
(d) y = 30
(e) y = 25
22. A right triangle has sides of length 3, 4, and 5. What is the cosine of its smallest angle?
(a) 4/5
(b) 3/5
(c) 3/4
(d) 5/3
(e) 4/3
23. Which of the following is correct?
(a) sin(.1) < cos(.1) < sin(.1)cos(.1)
(b) sin(.1) < sin(.1)cos(.1) < cos(.1)
(c) cos(.1) < sin(.1)cos(.1) < sin(.1)
(d) sin(.1)cos(.1) < sin(.1) < cos(.1)
(e) cos(.1) < sin(.1) < sin(.1)cos(.1)
24. Two lines each contain the point (0,0). One line has slope 3 and the other line has slope 5. The tangent of the angle interior to the lines is
(a) 2
(b) 1/8
(c) 0
(d) 1
(e) 8