Name: ________________________________________ Hour: ______

Algebra I CP – Semester Exam Review

GET ORGANIZED. Successful studying begins with getting organized. Bring this packet with you to

class every day. Gather up all of your old quiz and test reviews as you might find them helpful.

DO NOT FALL BEHIND. Do the problems that are assigned every night and come to class prepared

to ask about any issues you may have had or questions you could not solve.

GET SERIOUS. The grade you earn on this exam is worth 20% of your semester grade.

MAKE NOTES AS YOU WORK. As you do these problems, you will come across formulas,

definitions, problems, and graphs that you will want to put on your notecard.

NOTECARD: I will provide you with a 5” x 8” notecard. You are allowed to include any information

on this notecard (front and back) that you think will be helpful for the exam. This will be turned in with

your exam. No points are awarded for making a note card – it is a helpful study tool!

GRADE FOR PACKET: This packet is worth a 1-weight quiz grade. This grade is based on:

Completion: I will check each day to make sure that day’s work is done. YOU MUST

SHOW WORK.

Correctness: I will check random problems to make sure they are correct, or that you made

corrections as needed.

Midterm Review Packet Assignments

2nd Hour Exam: Tuesday, January 24th, 9:45 – 11:15 a.m.

6th Hour Exam: Thursday, January 26th, 8:00 – 9:30 a.m.

7th Hour Exam: Thursday, January 26th, 9:45 – 11:15 a.m.

Chapter Due Date

1, 2, & 3 Tuesday, January 17th

4 Wednesday, January 18th

5 Thursday, January 19th

6 Friday, January 20th

7 Monday, January 23rd

Chapters 1 & 2

Evaluate the power.

1. 32 2. 24 3. 51

4. x2 when x = 5 5. y3 when y = 3 6. m8 when m = 1

Write algebraic expressions and algebraic equations. Use x as the variable.

7. the quotient of the cube of a number and 12 8. 10 less a number

9. 10 less than a number 10. a number increased by 34

11. a equals the cube of the difference of x and y 12. s is 5 more than the product of a

and b.

Use the order of operations to evaluate the following.

13. 55 – 10 2 + 43 14. 3[7(14 – 23)+15] –18 15. 9 + 15 (3 + 2) 3

Evaluate each expression.

16. 2w + 4t (n + v ) if w = 2, v = 4, n = 6, and t = 8 17. 2

148 bandaifbab

Match the verbal sentence with its equation or inequality.

18. The difference of 4 and a number n is equal to 14. A. n – 4 ≤ 14

19. The difference of a number n and 4 is no more than 14. B. n – 14 ≤ 4

20. The difference of 4 and a number n is at least 14. C. 4 – n = 14

21. The difference of a number n and 14 is at most 4. D. 4 – n ≥ 14

Use the formula D=rt to solve the following word problems.

22. Andy drove 120 miles at 50 mph. How many hours did he drive?

23. Katie drove 62 mph for 2 ½ hrs. How far did she drive?

24. The collection of all output values is called the __________of a function.

25. The collection of all input values is called the ____________ of a function.

Identify the domain and range of the function.

26. 27.

What is a relation?_____________________ What is a function?_____________________

Determine if each of the relations is a function. Circle YES or NO and explain your reasoning.

28. { ( -2 , 2 ) , ( -1 , 2 ) , ( 0 , 1 ) } 29.

YES NO

YES NO

Graph the function using a table given the domain.

30. y = x + 5 Domain: 0, 1, 2, 3 31. y = 3x Domain: x 0

Write a rule for the function represented by the graph.

32. 33.

Write a rule for the function represented by the table.

34. 35.

Input Output

1 8

3 7

5 6

7 5

x y

0 1

-1 2

-1 0

Domain Range

Domain Range

Domain: ______________

Range: _______________

Domain: ______________

Range: _______________

3

6

9

12

8

3

4

7

Graph the following numbers on the number line and then order the numbers from least to

greatest.

36. 10

1,0,2,

5

2,1 37. –3, 0, 4,

4

5 ,

2

3, –1

Replace each _____ with , , or to make a sentence true.

38. 4

3 _____

7

5 39. –1.234 _____ –1.235 40.

5

3 _____

6

5

Evaluate the expression when x = – 2.5.

41. – x 42. x + 3 43. - x

Find the sum or difference.

44. –13 + 7 45. –7 + (–9) 46. 7.9 + (–3.6) 47. –2.4 + (–3.3)

48. 15 – 3 49. –5 – (–6) 50. 27 – (- 2) 51. -12 - 5

Find the product or quotient.

52. 126 53. 43 54.

4

3

9

5 55.

4

118

3

2

56. 63

2

57.

9

24 58. 6

4

3 59.

4

128

sr

Write an algebraic expression for the following inequalities.

60. a is at most 25 61. a is less than or equal to 6 62. a is at least 4

Approximate the square root to the nearest integer.

63. 35 64. 150 65. 18

Evaluate the expression for the given value of x.

66. 252 xwhenx 67. 194 xwhenx

Use the distributive property to write an equivalent expression.

68. 3(x + 5) 69. (x + 2)6 70. –3(x – 1)

Simplify the expression.

71. 8x + (–12x) 72. 3 + 6x + 1 73. 2(x + 4) + 7x

CHAPTER 1 & 2 ANSWERS

1. 9 14. 153 27. D: 3,6,9,12 41.2.5 54. -

67. 13

R: 8,3,4,7

2. 16 15. 10 28. yes 42. 5.5 55. 3 68. 3x + 15

3. 1 16. 324 29. no 43. -2.5 56. -

69. 6x +12

4. 25 17. 6 30-31. see graphs 44. -6 57. 18 70. -3x + 3

on my key

5. 27 18. C 32.

45. -16 58. -

71. -4x

6. 1 19. A 33.

46. 4.3 59. -2r + 3s 72. 4 + 6x

7.

20. D 34. 47. -5.7 60. a 25 73. 9x + 8

8. 10 – x 21. B 35.

48. 12 61.a 6

9. x – 10 22. 2.4 hr 36.

49. 1 62. a 4

10. x + 34 23. 155 mi 37.

50. 29 63. 6

11. a = 24. Range 38.< 51. -17 64. -12

12. s = 5 +ab 25. domain 39.> 52. 72 65. 4

13. 93 26. D:1,3,5,7 40. < 53. -12 66. -3

R: 8,7,6,5

Chapter 3

Solve the following equations.

1. 1017 a 2. m 5241 3. 8.14.2 c

4. 124

3 d 5.

5

8

3

1a 6. 8.24.1 a

7. 1359 c 8. 927

w

9. mm 8119

10. 134.0 m 11. 114

8 x

12. xx 72638

13. 512)5(7 d 14. 329415 mm 15. 66)6(319 aa

16. 7)8(4

1x 17. )63(7)24(6 rr 18. )4(1.23.415 nn

19. ww )26(2

1 20. 15

23

tt 21. 186)5(8 yy

22. 223118 bbb 23. )32(4416 pp 24. ddd 3154610

25. How can you tell if an equation has no solution, one solution or infinitely many solutions?

26. mm 813138 27. 8636 yy 28. ttt 3625

Write an equation for each problem, then solve.

29. The output of a function is 5 more than 2 times the input. Find the input when the output is 17.

30. A fitness center offers yoga classes for $10 per class and sells yoga mats for $19.95. A person paid a total of

$139.95 to the fitness center for yoga classes and the mat. Find the number of yoga classes the person took.

Identify a variable:_________________

Write an equation: _________________

Solve the equation:_________________

31. It takes 70 inches of ribbon to make a bow and wrap the ribbon around the box. The bow takes 32 inches of

ribbon. The width of the box is 14 inches. What is the height of the box?

Solve each proportion for the given variable.

32. 5

43

a 33.

w

10

7

6 34.

52

3

4

8

x

x

Solve each percent problem.

35. What is 65% of 495? 36. 45 is 90% of what number?

37. 70% of what number is 56? 38. 3 is 2% of what number?

Write an equation, and then solve it.

39. A map has a scale of 1in: 38 ft. Use the given map distance to find the actual distance: 5.5 in.

40. Matt bought a new pair of jeans. The jeans normally cost $47.95 but were advertised for 10% off. What was

the final cost of the jeans?

41. Your family’s dinner bill was $65.70. If your dad leaves a 15% tip, how much will he leave for the waiter?

Solve for x.

42. a + bx = c 43.

CHAPTER 3 ANSWERS

1. a = 7 11. x = -12 21. y = 11 31. 5 in. 41. $9.86

2. m = -11 12. x = 2 22. b = -3 32.

42. x =

3. c = 4.2 13. d = 4 23. p = -1 33.

43. x = a(c – b)

4. d = -16 14. m = -6 24. d = -1 34. -

5. a =

15. a = 3 25. True – infinite 35. 321.75

False – no sol.

6. a = -2 16. x = 36 26. Infinite 36. 50

7. c = 2 17. r = -18 27. No solution 37. 80

8. w = 77 18. n = 3 28. No solution 38. 150

9. m = -3 19. w = -

29. x = 6 39. 209 ft.

10. m = 5 20. t = 18 30. 12 classes 40. $43.16

Chapter 4

Give the coordinates of the points labeled A, B, C, and D.

1. A = _______ 2. A = _______

B = _______ B = _______

C = _______ C = _______

D = _______ D = _______

Graph the function with the given domain. Then identify the range of the function.

3. y = x + 4; domain: -2, -1, 0, 1, 2 4. 12

1 xy ; domain: -4, -2, 0, 2, 4

x

y

Range: Range:

Decide which of the two points lies on the graph of the line.

5. 102 yx a. (4, 3) 6. 92 xy

a. (5, 1)

b. (24, 18) b. (1. 5)

Graph the function with the given domain. Then identify the range.

7. y = 5x – 3; D: x 0 8. y = -5x + 3; D: x 0

x

y

Range:_____________ Range: _______________

x

y

x

y

Find the x-intercept and the y-intercept of the graph of the equation.

9. 2059 xy 10. 1887 yx

Graph the equation using any method.

11. 1042 xy 12. 4y 13. 25 xy

14. 23

1 xy 15. 4277 yx 16. xy 36

Plot the points and draw a line through them. Without calculating, tell whether the slope of the line is positive,

negative, zero, or undefined.

17. (-3, 3) and (7, -1) 18. (-4, -5) and (-3, -2) 19. (-7, 1) and (-7, -8)

Find the slope of the line that passes through the points.

20. m = _____________ 21. m = ________________

Use the slope formula to find the slope of the line that passes through the given points.

22. (3, 4) and (-5, 0) 23. (3, 0) and (8, 0) 24. (-6, -6) and (-2, -2)

25. The graph shows the cost (in dollars) to mail a letter that weighs one ounce during certain years.

a. Determine the time interval during which the

cost to mail a one-ounce letter showed the greatest rate of

change.

b. Determine the time interval during which the cost

to mail a one-ounce letter showed the

least rate of change.

Identify the slope and y-intercept of the line with the given

equation.

26. 264 xy 27. 528 xy 28. 126 x

m=________ b= _______ m=________ b= _________ m=________ b= _______

Match the equation with the graph. Put the letter of the graph on the line next to its equation.

a. b. c.

29. 1243 yx ______

30. 1243 yx ______

31. 1243 yx ______

Tell whether the equation represents direct variation. If so, identify the constant of variation.

32. xy 8 33. 63 yx 34. 12 xy

Given that y varies directly with x, use the specified values to write a direct variation equation that relates

x and y.

35. x = 24, y = 3 36. x = 5, y = -30 37. x = -8, y = 64

CHAPTER 4 ANSWERS

1. A(-4, 1) B(1, -2) C(3, 2) D(0, 3) 2. A(2, 0) B(-1, -4) C(-2, 2) D(1, 3) 3. R: 2, 3, 4, 5, 6 4. R: -1, 0, 1, 2, 3

5. neither 6. b. (1, 5) 7. R: 8. R: 9. x-int: (-4, 0), y-int: (0,

)

10. x-int: (

, 0), y-int: (0,

) 11-16. See graph on my key 17. negative 18. positive 19. undefined

20. m =

21. m = 0 22. m =

23. m = 0 24. m = 1 25a. 2001-2002 25b. 1995-1999

26. m =

, b =

27. m =

, b =

28. m = und, b = none 29. A 30. B 31. C

32. yes, a = 8 33. no 34. no 35.

36. y = -6x 37. y = -8x

Chapter 5

1. What is slope-intercept form?

2. What is standard form?

Write the equation of each line described in slope-intercept form.

10= 5= .3 bm 4. slope = -2 through (4, 6) 5. through ( 1 , 0 ) and ( - 3 , -1 )

Write the equation for each line in slope-intercept form.

6. 652 xy 7. 282 xy

6. Equation _______________ 7. Equation _______________

slope ________ y-int (____,____) slope _______ y-int (____,___)

Write the standard form for the given equation.

8. y x 2 3 9. y x 2

35

Write the equation in slope-intercept form.

10. 2

1b nd 4= am 11. 2) , (0through

3

-5= m

12. 3) , (-6through 3

1= m 13. 1)(5,through

2

-1= m

14. (6, 4) and (4, -10) 15. (1, 4) and (5, 8)

Write the equation of the line in slope-intercept form that models the data in the table below.

16. 17.

Find the slope of each line and circle if each set of points is parallel, perpendicular, or

neither.

18. xyb

xya

412)

62)

19.

126)

13)

xyb

xya 20. 1

4

3)

368)

xyb

xya

18. ma=______ 19. ma=_______ 20. ma=_________

mb=______ mb=_______ mb=_________

parallel perpendicular parallel perpendicular parallel perpendicular

neither neither neither

Write the equation of each line described in slope-intercept form.

21. ) 1 , 4 (h throug13 toParallel xy 22. ) 11 , 6 (h throug2

1 lar toPerpendicu xy

Write an equation in the given form of the line shown.

23. 24.

Point-slope form:______________ Point-slope form:______________

Slope-intercept form:_______________ Slope-intercept form:______________

Standard form: ______________ Standard form: ______________

x 0 1 5 7 10

y -3 -1 7 11 17

x 5 7 9 11 13

y 9 11 13 15 17

25. Write an equation for the function with values 33 f and 36 f

26. Write an equation for the function with values 2

51 f and 14 f

Identify a point on the line and the slope of the line, then graph the equation below.

27. )5(5

42

xy 28. )1(

3

14 xy

m: _________________ m : __________________

point: ______________ point: _______________

29. Describe the nature of the correlation of the data points.

(a) (b) (c) (d)

CHAPTER 5 ANSWERS

1. y = mx + b 11. y = -

20. ma =

, mb =

25. y =

parallel

2. Ax + By = C 12. y =

+ 5 21. y = -3x + 11 26. y = -

3. y = -5x + 10 13. y = -

27. m = -

pt: (-5, -2)

4. y = -2x + 14 14. y = 7x – 38 22. y = -2x + 23 28. m =

pt: (1, 4)

5. y =

15. y = x + 3

6. y = -

16. y = 2x - 3 23. y – 2 = -

(x + 3) 29a. none

m = -

, y-int (0, 3) y = -

2x + 3y = 0

7. y = 4x + 1 17. y = x + 4 24. y – 2 = -3(x + 3) 29b. negative

m = 4, y-int: (0, 1) y = -3x – 7 3x + y = -7

8. 2x – y = -3 18. ma = -3, mb =

29c. zero

perpendicular

9. 2x + 3y = 15

10. y = -4x +

19. ma = 3, mb =

29d. positive

neither

CHAPTER 6

Write the inequality shown by the graph.

1. 2.

3.

Solve and graph each inequality.

4. 3 (8 – p) < 42 5. – 5(2 – n) –30

6. 10x – 9 <15 + 4x 7. – 8y > –2y + 24

8. 5( y + 1) > 5y + 8 9. 3(4m – 2) 6(2m – 1)

10. 7( p + 3) < 4p + 21 + 3p 11. 2(5x – 12) – 2x > 8x + 3

Solve and graph each Compound Inequality.

12. –3 < x + 1 ≤ 5 13. –7 < x – 8 < 2

14. –5 < –5x ≤ 20 15. 0 ≤ 2(x – 3) < 8

16. 2(x + 4) < 6 or –x – 3 ≤ –7 17. 3x + 2 < 8 or –x + 3 < –2

Solve each absolute value equation.

18. |7x + 2| = 23 19. |5 – 2x| = 9 20. 3|2x – 2| = 18

21. |x + 3| –4 = –1 22. –6|10 – 2x| = 24 23. 2|6x + 5| –1 = 25

Solve and graph each inequality.

24. 4y ≤ 6x – 2 25. 5y ≤ 10x + 15 26. x < 6

CHAPTER 6 ANSWERS

1. x 12. -4 < x 23. x =

or x = -3

2. x > -2 13. 1 < x < 10 24. y

3. x < 3 14. 1> x 25. y

4. p > -6 15. 3 26. x < 6

5. n 16. x < -1 or x 4

6. x < 4 17. x < 2 or x > 5

7. y < -4 18. x = 3 or x = -

8. no sol. 19. x = -2 or x = 7

9. all reals 20. x = 4 or x = -2

10. no sol. 21. x = 0 or x = -6

11. no sol. 22. No solution

Chapter 7

Tell whether the ordered pair is a solution of the equation.

1. ( 4, 1) 2. (-2, 1) 3. (-2, -5)

x + 2y = 6 5x – 2y = -12 -x + y = -3

3x + y = 11 x + 3y = 1 -x + 3y = -13

Solve the linear systems by graphing.

4. y = 3x 5. 2x + y = -4 6. -3x – y = -1

y = 4x – 1 x – y = -8 2x + 4y = -16

7. 6x + 2y = -6 8. 6x + 12y = -6 9. 6x + 2y = 8

3x + y = 4 2x + 5y = 0 -3x + 4y = 16

Solve the linear systems by substitution.

10. 143

46

yx

yx 11.

22

034

yx

yx 12.

115

2488

yx

yx

13. 3353

622

yx

yx 14.

3248

93

yx

yx 15.

144

1833

yx

yx

Solve the following systems by using elimination.

16. 132

285

yx

yx 17.

1043

3047

yx

yx 18.

yx

yx

6104

1062

19. 2445

13

yx

yx 20.

8325

272

yx

yx 21.

832

1653

yx

yx

Solve the following story problems.

22. You are selling tickets to a high school play. Student tickets costs $5 and general admission tickets cost $8.

You sell 556 tickets and collect $3797. How many of each type of ticket did you sell?

23. A hotel rents a double-occupancy room for $20 more than a single-occupancy room. One night, the hotel

took in $3115 after renting 15 double-occupancy rooms and 26 single-occupancy rooms. Write and solve a

linear system to find the cost of renting a double-occupancy room and the cost of renting a single-

occupancy room.

24. A drummer is stocking up on drum sticks and brushes. The wood sticks that he buys are $10.50 a pair and the

brushes are $24 a pair. He ends up spending $90 on sticks and on brushes and buys two times as many pairs

of sticks as brushes. How many sticks and how many brushes did he buy?

Tell whether the ordered pair is a solution of the system of inequalities.

25. (3, 0) 26. (–2, 2)

Graph the system of linear inequalities.

27.

28.

29.

CHAPTER 7 ANSWERS

1. No 11. (-3, 4) 21. (8, 8)

2. Yes 12. (1, 2) 22. 217 student tickets and 339 general admission tickets

3. Yes 13. (6, -3) 23. double = $88.66, single = $68.66

4. (1, 3) 14. (3, -2) 24. 4 sticks, 2 brushes

5. (-4, 4) 15. (-4, -2) 25. yes

6. (2, -5) 16. (3, 5) 26. no

7. No solution 17. (-2, 4) 27-29. see graphs on my key

8. (-5, 2) 18. (10, 5)

9. (0, 4) 19. (4, -1)

10. (1.75,

) 20. (15, -4)

Chapter 1

30. 31.

Chapter 4

3. 4. 7.

8. 9. 10.

11. 14. 15.

16. 17. 18.

19.

Chapter 5

27. 28.

Chapter 6

24. 25. 26.

35. 36.

Chapter 7

27. 28. 29.