Math 3 Cumulative Reviewย ยท 2018. 9. 5.ย ยท Math 3 Cumulative Review Day 3 Unit 6 Simplify. Show...
Transcript of Math 3 Cumulative Reviewย ยท 2018. 9. 5.ย ยท Math 3 Cumulative Review Day 3 Unit 6 Simplify. Show...
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Name: ___________________________
Math 3 Cumulative Review Day 1 Unit 1
Graph each of the following.
1. 2๐ฅ โ 5๐ฆ โฅ 10 2. { ๐ฆ โฅ โ3๐ฅ + 2
๐ฆ <3
4๐ฅ โ 1
3. Are points on the line 2๐ฅ โ 5๐ฆ โฅ 10 solutions for the inequality in #1? Using a sentence or two,
explain why or why not.
4. {
๐ โค ๐โ๐๐ + ๐ โค ๐
๐ โฅ ๐ โ ๐
Find two solutions that work for all three inequalities.
5. Explain why a system of equations only has one solution while a system of inequalities has infinitely many solutions.
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Unit 2 Given the following sequences, determine whether itโs arithmetic, geometric or neither. Then find the next 3 terms. 6. -25, -34, -43, -52, โฆ 7. -2, 8, -32, 128, โฆ
8. -58, -39, -20, -1, โฆ 9. 5
3,
9
4,
13
5,
17
6,
21
7, โฆ
Use the given equation to find the first 3 terms of the sequence. 10. ๐๐ = โ3๐ + 8 11. ๐๐ = ๐๐โ1 โ 4 ๐1 = 3 Given the first 4 terms of the sequence, find the explicit formula and the recursive formula.
12. 22, 14, 6, -2, โฆ 13. 2
3, 1,
3
2,
9
4,
27
8, โฆ
Write the explicit formula for the equation. 14. ๐๐ = ๐๐โ1 โ 5 15. ๐๐ = ๐๐โ1 โ 1.5 ๐1 = โ2 ๐1 = 7 Write the recursive formula for the equation. 16. ๐๐ = โ3๐ + 1.7 17. ๐๐ = โ3(4)๐โ1
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Use formulas for sequences and series to solve each of the following. Show ALL work for full credit. Write your final answer in a sentence. 18. Hector gets better and better at a video game every time he plays. He scores 20 points in the first game, 25 in the second, 30 in the third, and so on. How many points will he score in his 27th game? How many points total did he score? Write your sentences here: 19. Samantha decides that she is going to save $500 of her paycheck each month. As hard as she tries, each month she only saves 80% of the previous month. What does she save on the 11th month? How much did she save total in those 11 months? How much would she save if she continued the pattern forever? Write your sentence here: Unit 3
Write the equation of a line parallel to each of the following. Show ALL work for full credit.
20. 7๐ฅ + 3๐ฆ = 33 21.
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22. Parallel to ๐ฆ = 3๐ฅ + 1 through (โ7, 4)
Write the equation of a line perpendicular to each of the following. Show ALL work for full credit.
23. ๐ฆ = โ2๐ฅ + 13 24.
Find the missing angles given that a โฅ b, mโ 1= ๐๐ยฐ, and mโ 2= ๐๐ยฐ.
25. mโ 3= _______ 26. mโ 4= _______ 27. mโ 5= _______
28. mโ 6= _______ 29. mโ 7= _______ 30. mโ 8= _______
31. mโ 9= _______ 32. mโ 10= _______
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Use what you know about two parallel lines and a transversal to solve for x. Show ALL work for full
credit.
33. 34.
(11๐ฅ โ 80)ยฐ (5๐ฅ + 46)ยฐ
(โ8๐ฅ + 67)ยฐ
(15๐ฅ + 85)ยฐ
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Name: ___________________________
Math 3 Cumulative Review Day 2 Unit 4
Evaluate each of the following.
35. ๐(๐ฅ) = โ14๐ฅ2 + ๐ฅ โ 6 for ๐(โ8) 36. ๐(๐) =3๐โ10
๐+6 for ๐(4)
Factor the following.
37. 3๐ฆ2 + 21๐ฆ + 24 38. 4๐ฅ2 โ 49
Factor to solve the following. Show all work for full credit.
39. 4๐ฅ2 + 14๐ฅ = โ10 40. 8๐ฅ2 + 56๐ฅ = 0
Use the quadratic formula to solve for x. Write the exact solution and the approximate solution.
Round answers to the nearest thousandth (3 decimal places). Donโt forget to check your answer!
Show all work for full credit.
41. 7๐ฅ2 = 22 + 7๐ฅ 42. 3๐ฅ2 โ 42 = 11๐ฅ
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43. Draw a picture of a quadratic that has 2 imaginary, complex roots
Complete the square on the following equations to put them into vertex form. Show all work for full
credit.
44. ๐ฆ = ๐ฅ2 โ 8๐ฅ + 21 45. ๐ฆ = 4๐ฅ2 โ 16๐ฅ + 11
46. Write the transformations for ๐ = โ๐
๐(๐ โ ๐)๐ + ๐
Unit 5
Find all real and complex roots of the polynomial function.
47. ๐(๐ฅ) = ๐ฅ4 + ๐ฅ3 โ 33๐ฅ2 + 9๐ฅ โ 378 48. ๐(๐ฅ) = 2๐ฅ3 + 6๐ฅ2 + 5๐ฅ + 15
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Write the equation of the polynomial function that satisfies the following conditions. Write your
equation in standard form.
49. 50. Quadratic with a root of 2 โ 5๐
51. Degree: 3, Roots: -3 with multiplicity of 2 and 8 with a multiplicity of 1
Find the x- and y-intercepts. 3 decimals! Find the local max and min. 3 decimals!
52. ๐(๐ฅ) = โ๐ฅ4 + 2๐ฅ2 โ ๐ฅ + 4 53. ๐(๐ฅ) = ๐ฅ3 โ 7๐ฅ2 + 11๐ฅ + 1
Find the domain and range. 3 decimals!
54. ๐(๐ฅ) = โ๐ฅ3 โ 2๐ฅ2 + 4๐ฅ + 5 55. ๐(๐ฅ) = โ๐ฅ4 + 2๐ฅ2 + 2๐ฅ + 4
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Find the maximum and minimum, then find the increasing and decreasing intervals. Draw a picture to
show your work.
56. ๐(๐ฅ) = ๐ฅ4 โ 4๐ฅ3 + 3๐ฅ2 + 2๐ฅ โ 2
At a carnival there was a potato launching contest. On one launch, the height of the potato (in feet)
above the ground after t seconds is modeled by the equation ๐(๐) = โ๐๐๐๐ + ๐๐๐ + ๐. Round all
decimal answers to the nearest tenth (one decimal place).
57. At what height was the potato launched? Write your answer in a sentence.
58. What is the maximum height the potato reached? Write your answer in a sentence.
59. How long did it take the potato to reach that maximum height? Write your answer in a sentence.
60. At what time did the potato hit the ground? Write your answer in a sentence.
61. How high was the potato at 3 seconds? Write your answer in a sentence.
62. When was the potato 28 feet off the ground? Write your answer in a sentence.
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Name: ___________________________
Math 3 Cumulative Review Day 3 Unit 6
Simplify. Show all of your work.
63. ๐ฅ2โ9
๐ฅ2โ7๐ฅ+12 64.
๐ฅ
3๐ฅ+9+
5
๐ฅ+3
65. ๐ฅ+4
6๐ฅโ2รท
๐ฅ2+2๐ฅโ8
3๐ฅโ1 66.
๐ฅ2+6๐ฅ+7
๐ฅ2+2๐ฅโ15โ
2๐ฅโ10
๐ฅ2+6๐ฅ+7
Solve the following equations. Show all of your work.
67. 6
7=
2
7๐ฅโ
4
๐ฅ 68.
๐ฅ+5
๐ฅ2+6๐ฅโ
1
๐ฅ+6=
3
๐ฅ
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69. Write the standard or general form of each equation under the graph that would be an example
of that equation.
02 cbxax 023 dcxbxax CByAx
cx cy )(
)()(
xq
xpxf , 0)( xq
Unit 7
Find the inverse of each function.
70. ๐ฆ = (๐ฅ โ 3)2 + 1 71. ๐ฆ =1
2๐ฅ โ 5 72. { (-3, 7), (0, 19), (6, -12) }
Solve for x. (Hint: use your chart!)
73. 162๐ฅ+1 = (1
8)
โ๐ฅ+3 74. 35๐ฅโ1 = 276 75. (
1
625)
๐ฅ+4= 252โ๐ฅ
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Solve for x. Show ALL WORK for full credit. All decimals should be rounded to the nearest hundredth
(two decimal places).
76. log6(3๐ฅ โ 4) = 2 77. log4(๐ฅ + 6) โ log4 ๐ฅ = log4 57
78. 7๐ฅ = 19 79. log5 48 = ๐ฅ
80. 5๐ฅ+11 = 19.4 81. 6 + 2๐7๐ฅ = 32
Complete each of the following word problems. Show ALL WORK for full credit. Round decimal
answers to the nearest hundredth (two decimal places) and be sure to include units for full credit!
82. James purchased a truck for $24,300. The value of the truck decreases by 11% per year. What will
be the approximate value 15 years after the purchase? ๐ฆ = ๐(1 ยฑ ๐)๐ก
83. The half-life of a radioactive isotope is 9 years. Initially, there are 140 grams of the isotope. How
long will it take for there to be 15 grams of the isotope? ๐ฆ = ๐ (1
2)
๐กโโ
84. Isabella invested $900 at 4.5% annual interest, compounded quarterly. The value, A, of an investment can be
calculated using the equation ๐ฆ = ๐ (1 +๐
๐)
๐๐ก. Exactly how long will it take for her investment to be worth four
times as much (quadruple) in value?
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Find the inverse of each function. Show ALL WORK for full credit.
85. ๐ฆ = 3(๐ฅ + 1)3 โ 5 86.
Graph each function. Show the transformation of the characteristic points by filling out the table.
Then find the domain and range, increasing and decreasing intervals, and intercepts.
87. ๐(๐ฅ) = โ๐๐๐4(๐ฅ + 2) โ 1 88. ๐(๐ฅ) = 2(3)๐ฅโ4 + 1
Domain: ____________ Domain: ___________
Range: ____________ Range: ___________
Increasing Int: ____________ Increasing Int: ____________
Decreasing Int: ____________ Decreasing Int: ____________
x-int: ____________ x-int: ____________
y-int: ____________ y-int: ____________
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Unit 10
Name the quadrant that the following angles are in. Then convert radians to degrees and degrees to
radians.
89. 3๐
7 90. โ118ยฐ 91. 520ยฐ 92. โ
๐
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Match each of the following angles with their graphs.
93. 160ยฐ ______
94. ๐
5 ______
95. 230ยฐ ______
96. 13๐
7 ______
Find the six trig ratios for the angle of interest.
97.
sin ฮธ = csc ๐ =
cos ๐ = sec ๐ =
tan ฮธ = cot ๐ =
98. Complete the chart.
Degrees Radians (๐ฅ, ๐ฆ) Quadrant sin ๐ cos ๐ tan ๐
๐
6
120ยฐ
7๐
4
210ยฐ
๐
4
1
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Graph each of the following.
99. ๐ฆ = โ2 sin(3๐)
Amplitude: Period: Domain: Range:
100. ๐ฆ = 3 cos(๐) + 2
Amplitude: Period: Domain: Range: