MATH 0310 Review for Final Exam

1. For the graph:
a. state the coordinates of
the y- intercept
b. state the slope
c.  write the equation of the line
d.  find the domain
e.  find the range / /
1a ______
1b______
1c______
1d______
1e______

2. Find the slope of the line parallel to the line passing through and .

2______

3. State the slope of the line perpendicular to the line. 3______

A. B. C. D. E.

4. For the following graph of ,
determine:
a.
b. the domain of
c. the range of / / 4a______
4b______
4c______

5. Find the domain for

6. Find a linear function whose graph has and-intercept. Then graph. 6______

7. A table of values is given. Write the equation of the line through the given points.7______

8. Find the equation of the line. Write equation of the line in slope- intercept form.

a. With slope equal to zero through (-3, 5) 8a______

b. With undefined slope through (-2, -5) 8b______

c. Horizontal through (-8, 2) 8c______d. Vertical through (9, 5) 8d______

e. Parallel to y = -4x +3 through (2, -3) 8e______

9. Determine whether each relation is a function. Answer yes or no. 9______

10. a. Graph / / b. Graph /

11. In 1990, the life expectancy of females was 78.8 yr. In 2000, it was 79.8 yr.

Let E (t) represent the life expectancy of females and t the number of years since 1990.

a. Find a linear function that fits the data. 11a______

b. Use the function to estimate the life expectancy of females in 2010. 11b______

12. Find an equation of the line perpendicular to the line and containing the point.

Write the equation in the slope-intercept form.

12______

13. Factor completely:

a. 13a______

b. 13b______

c. 13c______

14. Simplify: a. 14a______

b. 14b______

15. Solve: 15______

16. A biker can travel 18 mph with no wind. The same rider can

bicycle 8 miles against the wind in the same time it takes to bicycle

12 miles with the wind. What is the speed of the wind? 16______

A. 9 mph B. 3.6 mph C. none of these D. 90 mph E. 9 mph

For problems 17 – 21, find the following, given that and

17. 17______

18 18______

19. 19______

20. domain of 20______

A. B. C. D. E.

21. domain of 21______

Solve the system of equations by graphing.

22.
/ / 22______

Solve the following systems of equations algebraically using the indicated methods.

23. (Substitution Method) 23______

24. (Elimination Method) 24______

Write the systems of equations. Then solve.

25. Retail orders. The St. Andrew’s Community Barbecue served 175 dinners. A child’s plate

Cost $3.50 and an adult plate cost $7.00. A total of $875 was collected. How many of each

type of plate were sold?

25 equations: ______25 solutions: ______

______

26. Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each should be

mixed to get a 200-lb mixture that is 11.8% protein?

26 equations: ______26 solutions: ______

______

For problems 27 – 30, solve and graph the solution set on a number line. Then write the solution set in interval notation.

27. < 27______

28. or 28______

29. and 29______

30. -3 < 2x + 5 < 7 30______

31. Let. Find:

a. 31a______

b. 31b______

c. 31c______

d.  State the domain of 31d______

32. Let

a.  find 32a______

b.  find the domain of 32b______

Simplify.

33. 33______

A. B. C. D. E.

34 34______

35. 35______

36. 36______

For problems 37 – 40, perform the indicated operations and simplify.

37. 37______

38. a. – 38a______

b. 38b______

39. a. Rewrite with rational exponents. 39a______

b. Rewrite in radical notation. 39b______

40. Rationalize each denominator:

a. 40a______

b. 40b______

c. 40c______

Solve #41 and #42.

41. = 41 ______

42. 42______

43. Find the distance between the points and. 43______

44. Find the midpoint of the line segment that joins the points

and. 44______

45. Find the equation of the circle in standard form if is the center and is a point on the circle. 45______

46. For +, state the center and radius of the circle. 46______

Solve #47 – #50.

47. 47______

48. 48______

49. 49______

50. 50______

A. B. C. D. E.

51. The function gives the distance in feet that a car going approximately 68 miles per hour will skid in seconds. Find the time it would take for the car to skid 180 feet. Round the answer to the nearest tenth. 51______

52 A ball is thrown upwards according to the following equation f (t) =. When will it

reach a height of 64 feet? 52______

53. Solve using a calculator. Round answer to three decimal places. 53______

54. Normally, it takes Professor Thompson 3 hours to grade a class of final exam essays. If his graduate assistant grades the essays, it takes her 5 hours. How long will it take them to grade the essays together? 54______

55. For find the:
a. vertex
b. axis of symmetry
c. direction the parabola opens
d. intercept
e. intercepts
f. minimum or maximum value
g. Graph the function. / / 55a______
55b______
55c______
55d______
55e______
55f______
56. Graph the solution set of the system of inequalities.

/

57. Use a graphing calculator to solve. Use the window [- 4, 6, - 2, 6]. Round the answer to three

decimal places.

57______

58. Solve: 58.______

MATH 0310 Review *Answer Key*

1. a. (0, 1) d.
b. = e.
c. =
2.
3. B / 10.b

4. a. 1 b. or
c. or
5. or / 11. a. () = 0.1 + 78.8
b. 80.8 years
12. y = 4x + 4
6.
/ 13 a.
b. 2(2x – 3)(2x + 3)
c. (3x – 4)(2x + 5)
14. a. b.
15. x = - 3
16. B
17.
7.
8. a. y = 5 b. x = -2
c. y = 2 d. x = 9
e. y= -4x + 5
9. Yes; No; Yes / 18. 5
19.
20. A.
10a.
/ 21. or
22.
23. No solution
24. (4, –5)
25.
100 children's plates; 75 adults’ plates
26.
80 lbs of soybean meal and 120 lbs of corn meal / 45. +
46. center = ;
27.
/ 47. - 6, 3
48. 3 ± 7
49. -2 ± 2
28. / 50. C
51. 9.2 seconds
52. t = 1 sec or t = 4 sec
29. no solution
30. (-4, 1)
/ 53. x = .232 or x = 1.434
54. hours
55. a. b.
31. a. 5 b.
c. d. or / c. downward d.
e.
f. maximum
32. a. b.
33. D
34.
35. 36.
37.
38. a. 8 – 10 b. 33 + 50 / g.

39. a. b.
40. a. b.
c.
41.
42.
43. 10
44. (–1, 4) / 56.

57. (1.530, 2.583)
58. [-1, 4]

Revised: March 2012 Page 10 Math 0310 Review for Final-MG-v04rev3.doc