# Homework

In case you miss a homework assignment in class, you can find it below. Unless otherwise specified, all problems are from the 3rd Edition of Elementary & Intermediate Algebra published by Pearson. When I return graded homework, I may post some solutions here too; see the downloading help if you have trouble reading them. (See the grading policies for general instructions on doing homework and how it will be graded.)
1. Introduction and review:
• Date assigned: October 3 Thursday.
• Date due: October 8 Tuesday.
• Problems from Section 1.1 (pages 7&8): No additional work needed: 1–8.
• Problems from Section 1.2 (Quick Check):
• Show at least one intermediate step if the number is not prime: 3–6;
• Show at least one intermediate step if the fraction is not already in lowest terms: 20, 21, 22;
• No additional work needed: 27–31;
• Show your long division (or another method by hand): 32–35;
• Show at least one intermediate step if the fraction must be reduced: 36, 37, 38.
• Extra credit (essay): Explain your background in mathematics and what you are going to use this course for.
2. The real numbers:
• Date assigned: October 8 Tuesday.
• Date due: October 10 Thursday.
• Problems from Section 1.3 (pages 25–27): No additional work needed: 37–68, 79–88.
• Problems from Section 1.4 (pages 35–37):
• No additional work needed: 59, 61, 95, 97, 99;
• Show what numerical calculation you make (if you use a calculator, then show what you type into it), as well as your final answer: 129–149 odd.
• Problems from Section 1.5 (pages 46&47):
• No additional work needed: 53, 55;
• Show what numerical calculation you make (if you use a calculator, then show what you type into it), as well as your final answer: 135, 137.
3. Units and powers:
• Date assigned: October 10 Thursday.
• Date due: October 15 Tuesday.
• Problems from Section 1.6 (pages 54&55): Show what numerical calculation you make, and include proper units in your final answer: 19–27 odd.
• Problems from Section 1.7 (pages 62&63):
• No additional work needed: 29–32;
• Show at least one intermediate step (not from a calculator): 33–53 odd.
• Problems from Section 5.4 (pages 343&345):
• No additional work needed: 51–58;
• Show at least one intermediate step (not from a calculator): 63, 71, 73.
4. Order of operations and identities:
• Date assigned: October 15 Tuesday.
• Date due: October 17 Thursday.
• Problems from Section 1.7 (pages 62&63): Show at least one intermediate step following the order of operations: 55–71 odd, 75, 77, 79, 83, 87, 89, 91, 95, 97, 99.
• Problems from Section 1.6 (pages 54&55):
• Show an intermediate step using an identity to make the problem simpler: 45–53 odd;
• No additional work needed: 55, 56, 59, 60, 61.
• Problems from Section 1.4 (pages 35–37):
• Optional if you need practice adding with negative numbers: 43–57 odd;
• Optional if you need practice subtracting with negative numbers: 63–77 odd;
• Optional if you need practice multiplying with negative numbers: 79–93 odd;
• Required, no additional work needed: 101–127 odd.
• Problems from Section 1.5 (pages 46&47):
• Optional if you need practice multiplying with fractions: 43–51 odd;
• Optional if you need practice dividing with fractions: 57–65 odd;
• Optional if you need practice adding and subtracting with fractions: 67–81 odd;
• Required, no additional work needed: 103–111 odd.
5. Exponential identities, algebraic expressions:
• Date assigned: October 17 Thursday.
• Date due: October 22 Tuesday.
• Problems from Section 5.2 (pages 322&323): Show at least one intermediate step using an exponential identity: 21, 23, 35, 37.
• Problems from Section 5.4 (pages 343&345): Show at least one intermediate step using an exponential identity: 33, 43, 79, 97, 99, 101.
• Problems from Section 5.6 (pages 357–359):
• No intermediate work needed: 27–75 odd;
• Show at least one intermediate step using an exponential identity: 77–87 odd.
• Problems from Section 1.8 (pages 69–71): Show what numerical calculations you make: 39–49 odd.
• Problems from Section 5.1 (pages 315–318): Show what numerical calculations you make: 87, 89.
6. Formulas, polynomials:
• Date assigned: October 22 Tuesday.
• Date due: October 24 Thursday.
• Problems from Section 2.4 (pages 115–119): Show what numerical calculations you make: 23–39 odd.
• Problems from Section 1.8 (pages 69–71):
• No additional work needed: 51–54.
• No additional work needed: 63–81 odd;
• Show at least one intermediate step for each: 83–91 odd;
• Show the simplified form and show what numerical calculations you make to evaluate: 103;
• Show what numerical calculations you make to evaluate: 121.
• Problems from Section 5.1 (pages 315–318):
• No additional work needed: 29–40;
• No additional work needed; ignore ‘binomial’ and ‘trinomial’ but instead classify polynomials as monomial or other: 41–56;
• Show at least one intermediate step for each: 57–65 odd, 71–81 odd, 93–99 odd, 107.
7. Graphing formulas:
• Date assigned: October 24 Thursday.
• Date due: October 29 Tuesday.
• Problems from Section 3.1 (pages 178–182):
• No additional work needed: 19, 25;
• Show what numerical calculations you make: 39, 41.
• Problems from Section 3.2 (pages 192–195): Show a table of values using at least three values of x, at least one negative and at least one positive: 33, 35, 37.
8. Word problems involving expressions, testing solutions:
• Date assigned: October 29 Tuesday.
• Date due: October 31 Thursday.
• Problems from Section 2.5 (pages 129–131): No additional work needed: 27–52.
• Problems from Section 5.1 (pages 315–318): Show what numerical calculations you make (if the answer has no variables in it) or what expression you simplify (if the answer has a variable in it): 119–129 odd.
• Problems from Section 2.1 (pages 89–91): Show what numerical calculations you make: 25–31 odd.
• Problems from Section 3.1 (pages 178–182): Show what numerical calculations you make: 27, 29, 31.
• Problems from Section 3.7 (pages 237–239): Show what numerical calculations you make: 15, 16, 17, 21.
9. Notation for sets, simple linear equations:
• Date assigned: October 31 Thursday.
• Date due: November 5 Tuesday.
• Problems from Section 1.3 (pages 25–27): No additional work needed: 25–30;
• Problems from Section 2.8 (pages 157–159): No additional work needed: 37–50.
• Problems from Section 8.6 (pages 581–584): No additional work needed: 43, 44, 67, 68.
• Problems from Section 2.1 (pages 89–91): Show at least one intermediate step for each equation: 33–85 odd.
10. More linear equations:
• Date assigned: November 5 Tuesday.
• Date due: November 7 Thursday.
• Problems from Section 2.2 (pages 96–98): Show at least two intermediate steps for each equation: 25–55 odd, 63–71 odd, 91.
• Problems from Section 2.3 (pages 105–107): Show at least two intermediate steps for each equation: 63, 65, 67.
11. Tricky linear equations, inequalities:
• Date assigned: November 7 Thursday.
• Date due: November 12 Tuesday.
• Problems from Section 2.3 (pages 105–107):
• Show at least two intermediate steps for each equation, the first of which must clear fractions: 27–35 odd, 45–53 odd;
• Show at least two intermediate steps for each equation: 69–79 odd.
• Problems from Section 2.8 (pages 157–159): Show at least one intermediate step for each: 59–81 odd.
12. Compound inequalities, word problems:
• Date assigned: November 12 Tuesday.
• Date due: November 14 Thursday.
• Warning: Be sure to include correct units (when applicable) in your final answers!
• Problems from Section 8.6 (pages 581–584): Show at least one intermediate step for each: 51–59 odd, 85, 89, 93.
• Problems from Section 2.1 (pages 89–91): No additional work needed, but think about how you could come up with the equation on your own: 103, 105;
• Problems from Section 2.2 (pages 96–98): No additional work needed, but think about how you could come up with the equation on your own: 77, 79, 81;
• Problems from Section 2.3 (pages 105–107): No additional work needed, but think about how you could come up with the equation on your own: 105–111 odd.
• Problems from Section 2.5 (pages 129–131):
• No additional work needed: 53–60;
• Show at least what equation you solve: 61–73 odd, 79, 81.
13. Word problems with inequalities and percentages:
• Date assigned: November 14 Thursday.
• Date due: November 19 Tuesday.
• Problems from Section 2.8 (pages 157–159):
• No additional work needed: 89–98;
• Show at least what inequality you solve: 117, 119, 121.
• Problems from Section 2.6 (pages 136–138): Show what numerical calculation you make or what equation you solve: 19–53 odd.
• Problems from Section 8.6 (pages 581–584):
• No additional work needed: 101, 102;
• Show at least what compound inequality you solve: 103–109 odd.
14. Tricky word problems, multiple variables:
• Date assigned: November 21 Thursday.
• Date due: November 26 Tuesday.
• Problems from Section 2.7 (pages 145–147):
• Show at least what equation you solve: 21, 23, 27;
• No additional work needed: 29, 30;
• Show at least what equation you solve: 39–45 odd.
• Problems from Section 2.4 (pages 115–119):
• No additional work needed; assume that all variables stand for positive numbers: 43–52;
• No additional work needed: 57;
• Show at least one intermediate step: 59, 61, 63;
• Show what numerical calculation you make or what equation you solve for each part B: 65, 67, 71;
• Show what numerical calculations you make or what equations you solve: 83, 85.
15. Graphing in two variables:
• Date assigned: November 26 Tuesday.
• Date due: December 3 Tuesday.
• Problems from Section 3.1 (pages 178–182):
• Show what numerical calculations you make or what equations you solve: 33, 35, 37, 43, 45, 47.
• Problems from Section 3.2 (pages 192–195):
• No additional work needed: 25–32;
• Give a table of values with at least three entries and show what formula you use to find them: 39–49 odd;
• No additional work needed: 51–58;
• Show what numerical calculations you make or what equations you solve: 59–75 odd;
• No additional work needed: 87–94;
• Show what numerical calculations you make or what equations you solve: 107, 109;
• No additional work needed: 111–118.
• Problems from Section 8.6 (pages 581–584): Extra credit: Show the solutions for each half, as well as the combined answer: 45, 47, 49, 69, 71.
• Problems from Section 8.7 (pages 592–594): Extra credit: Show at least one intermediate step without an absolute value operation: 45, 51, 61, 67, 79.
16. Slope and lines:
• Date assigned: December 3 Tuesday.
• Date due: December 5 Thursday.
• Problems from Section 3.4 (pages 212–214):
• No additional work needed: 21–27 odd;
• Show the equation solved for y: 29–35 odd;
• No additional work needed; 37–47 odd;
• Show the equation solved for y: 49–55 odd;
• No additional work needed: 57–67 odd.
• Problems from Section 3.3 (pages 202–205):
• Show what numerical calculation you make, or show where the answer appears on a graph: 13–31 odd;
• No additional work needed: 37–44, 45–57 odd;
• Optional: 67;
• Extra credit (show lots of work): 68.
• Problems from Section 3.5 (pages 219–221):
• Show at least one intermediate step for each that is more than simply an incomplete answer: 13–27 odd;
• No additional work needed: 29–36;
• Show at least two intermediate steps for each: 37–47 odd;
• No additional work needed: 87, 88.
17. Comparing lines, systems of linear equations:
• Date assigned: December 5 Thursday.
• Date due: December 10 Tuesday.
• Problems from Section 3.6 (pages 228–230):
• No additional work needed: 21–34;
• Show what numbers you compare: 35, 37;
• Show at least one intermediate step for each: 43–49 odd, 55–63 odd, 77, 79, 81;
• Show what numerical calculations you make: 83, 85.
• Problems from Section 4.1 (pages 257–259):
• Show what numerical calculations you make: 17, 19;
• No additional work needed: 39–46.
• Problems from Section 4.2 (pages 265–267): Show your intermediate step immediately after substituting: 13, 15, 17, 23, 25, 35–41 odd.
• Problems from Section 4.3 (pages 274–276):
• Show your intermediate steps immediately before and after adding two equations: 13, 15, 17, 27–35 odd;
• Show enough work that I can tell which method you used: 47, 49, 55.
18. Multiplying polynomials and similar expressions:
• Date assigned: December 10 Tuesday.
• Date due: Never!
• Problems from Section 5.2 (pages 322&323):
• No additional work needed: 25–31 odd, 39;
• Show at least one intermediate step for each: 43–59 odd, 67–79 odd.
• Problems from Section 5.4 (pages 343&345):
• No additional work needed: 35–41 odd, 45, 47, 49, 59, 61, 65, 67, 69, 75, 77, 81, 83, 85;
• Show at least one intermediate step for each: 87–95 odd, 105–109 odd, 123, 125, 127.
• Problems from Section 5.3 (pages 331–333):
• Show at least one intermediate step for each: 35–47 odd;
• Show at least one intermediate step for each, using a special form: 49–81 odd;
• Show at least one intermediate step for each: 83–93 odd, 111, 129, 131.
That's it!
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This web page and the files linked from it were written between 2003 and 2013 by Toby Bartels, last edited on 2013 December 10. Toby reserves no legal rights to them.

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