Editions 4 and 5 (same edits and page numbers in both these editions)

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Below is a list of fixes. The underlined text was changed to the text in bold font.

 

• v5.04: Cover Denominator of quadratic formula –  2 to 2a.

• v4.08/v5.04: Page 31 Practice Test 1 Module 1 Question 11 – added than the previous 3-year period at the end of the first sentence.

• v4.08/v5.04: Page 34 Practice Test 1 Module 2 Question 2 –  5x+7(y-2) to 5x-7(y-2).

• v4.08/v5.04: Page 36 Practice Test 1 Module 2 Question 14 Answer choice B – changed to (7)(2/10)pie.

• v4.08/v5.04: Page 37 Practice Test 1 Module 2 Question 21 – In the last part of the where clause changed 1 to 0.

• v4.08/v5.04: Page 38 Practice Test 1 Module 1 Answer 8 – added or -.0833 for the correct answer.

• v4.08/v5.04: Page 38 Practice Test 1 Module 1 Answer 10 – the random is to the sample is.

• v4.08/v5.04: Page 38 Practice Test 1 Module 1 Answer 13 – in the solution, changed equal operator to less than or equal to operator. Skill (1.5) to Skill (1.6).

• v4.08/v5.04: Page 38 Practice Test 1 Module 1 Answer 16 – Change the first sentence to The linear scale on the blueprint is 1/9 of the actual length.

• v4.08/v5.04: Page 39 Practice Test 1 Module 1 Answer 18 – r^2-128.4 to r^2-128.5.

• v4.08/v5.04: Page 40 Practice Test 1 Module 2 Answer 5 – Skill (1.2) to Skill (1.3).

• v4.08/v5.04: Page 40 Practice Test 1 Module 2 Answer 5 – Skill (1.2) to Skill (1.3).

• v4.08/v5.04: Page 40 Practice Test 1 Module 2 Answer 9 – Plug x=4 to Plug m=4.

• v4.08/v5.04: Page 40 Practice Test 1 Module 2 Answer 10 – updated the wording to Since the slopes are the same, the ratios of a and b must be the same in standard form.

• v4.08/v5.04: Page 41 Practice Test 1 Module 2 Answer 11 –  Point P to Point D.

• v4.08/v5.04: Page 41 Practice Test 1 Module 2 Answer 14 –  36/5 pie=(7)(1/5) pie to 7.2 pie=(7)(2/10) pie. Skill (4.2) to Skill (4.1).

• v4.08/v5.04: Page 41 Practice Test 1 Module 2 Answer 16 –  a<-33.37 to a<-33.75.

• v4.08/v5.04: Page 42 Practice Test 1 Module 2 Answer 19 –  slope = (29-1.1)/(8-0)=27.9/8=3.48 to slope = (29-5)/(8-1)=24/7=3.428.

• v4.08/v5.04: Page 49 Practice Test 2 Module 2 Question 4 – The question had errors. Replaced with a new question. See the image below of the question and answer solution.

• v4.08/v5.04: Page 50 Practice Test 2 Module 2 Question 9 – where a and b are real numbers to where a>0 and b>0.

• v4.08/v5.04: Page 53 Practice Test 2 Module 1 Answer 5 –  matches answer choice B to matches answer choice D.

• v4.08/v5.04: Page 53 Practice Test 2 Module 1 Answer 7 –  system is for the same line to equations in the system represent the same line.

• v4.08/v5.04: Page 54 Practice Test 2 Module 1 Answer 19 –  updated standard deviation explanation to It is same because one dot plot is the refection of the other, and their frequencies are the same. Hence, all values are the same distance from the mean.

• v4.08/v5.04: Page 55 Practice Test 2 Module 2 Answer 4 –  updated with the answer explanation to the new question. See image below of the question and answer solution.

• v4.08/v5.04: Page 55 Practice Test 2 Module 2 Answer 5 –  updated the answer explanation. Skill (1.1) to Skill (2.1).

• v4.08/v5.04: Page 56 Practice Test 2 Module 2 Answer 15 –  Skill (2.3) to Skill (2.2).

• 4.08/v5.04: Page 56 Practice Test 2 Module 2 Answer 17 –  Skill (1.1) to Skill (2.1).

• 4.08/v5.04: Page 69 Practice Test 3 Module 1 Answer 7 –  of the y-coordinate to of the y-intercept.

• 4.08/v5.04: Page 70 Practice Test 3 Module 1 Answer 12 –  Answer changed from 140 to D.

• 4.08/v5.04: Page 70 Practice Test 3 Module 1 Answer 14 –  Skill (1.2) to Skill (1.3).

• 4.08/v5.04: Page 71 Practice Test 3 Module 1 Answer 19 –  The median is in the 7th dot to The median is in the 8th dot.

• 4.08/v5.04: Page 72 Practice Test 3 Module 2 Answer 1 –  Skill (1.2) to Skill (1.3).

• 4.08/v5.04: Page 72 Practice Test 3 Module 2 Answer 10 –  Updated the Desmos graph to display the correct points.

• 4.08/v5.04: Page 73 Practice Test 3 Module 2 Answer 16 –  deleted a is the y-coordinate of the y-intercept.

• 4.08/v5.04: Page 82 Practice Test 4 Module 2 Question 4 –  in thousands, 6 years after to in hunfreds, 6 years after.

• 4.08/v5.04: Page 86 Practice Test 4 Module 1 Answer 2 –  In the Desmos solution [x subscript 1 to [5x subscript 1.

• 4.08/v5.04: Page 88 Practice Test 4 Module 2 Answer 9 –  Skill (1.2) to Skill (1.3).

• 4.08/v5.04: Page 89 Practice Test 4 Module 2 Answer 12 –  Pythagreom to Pythagorean.

• 4.08/v5.04: Page 89 Practice Test 4 Module 2 Answer 18 –  Answer choice D: 6+16k=64 to Answer choice D: 6+16k=65.

• 4.08/v5.04: Page 103 Practice Test 5 Module 1 Answer 6 –  49x+65y=2,182 to 49x+69y=2,182.

• 4.08/v5.04: Page 105 Practice Test 5 Module 1 Answer 21 –  -10.2 to -10.198. 10.2 to 10.198. -5.2 to -5.198. 5.2 to 5.198. For the Desmos solution changed It will be above for a value greater than -5.2 and less than 10.2 to It does not intersect the x-axis for an integer value between -5 and 15.

• 4.08/v5.04: Page 105 Practice Test 5 Module 1 Answer 22 – a:a(sqareroot2):2a to a:a(sqareroot3):2a. Skill (4.4) to Skill (4.1).

• 4.08/v5.04: Page 106 Practice Test 5 Module 2 Answer 8 – Removed the Desmos method.

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Please note that edition 4 had a few errors between 10/10/2025 and 11/10/2025. If you bought a copy during this period, please contact the author for a replacement with proof of receipt.

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New: Practice Test 2 Module 2 Question 4 and the answer solution.