| Assigned |
Due date | Read |
Exercises |
|---|---|---|---|
| 1/17 |
1/22 |
7.1 |
Be prepared to present in class: 1. Give examples of rational expressions a) one variable, b) two variables, c) three variables, d) with negative coefficients, e) with fractional coefficients, f) with irrational coefficients. 2. Which of the following are rational expressions? Explain why. a) (3x^4-5x+1)/(x^2+6x-3) b) (7x^2y^3+3y^2-2)/(5xy^2+x^2+2xy) c) 7x^2y^3+3y^2-2 d) -3 e) 0/(2x^3+1) f) -5/9 |
| 1/24 |
1/29 |
7.1 |
Be prepared to present in class: Find the restrictions on
the variables in the rational expressions in the following
exercises. Don't worry about reducing for now: 7.1.2, 6, 10,
12, 16, 18 Turn in on paper on 2/5: Find a rational expression in y that is undefined for y=3, y=-5, and y=0. Be sure to explain why your rational expression is undefined for these values. |
| 1/31 |
2/7 |
7.1, 2 |
Do set 7.1a in the HLS online homework software. Turn in on paper: 7.1.44. Be sure to show all of the details of your work. Be prepared to present in class on 2/5: 7.1.22, 28, 38, 42 |
| 2/7 |
2/14 |
7.3, 4 |
Do sets 7.1b and 7.2 in the HLS online homework software. Turn in on paper: 7.2.58. Be sure to show all of the details of your work. Be prepared to present in class on 2/12: 7.2.14, 36, 54, 60 |
| 2/14 |
2/21 |
7.4, 5 |
Do sets 7.3 and 7.4b in the HLS online homework software. Turn in on paper: 7.4.50. Show all of the details of your work and check your solution(s). Be prepared to present in class on 2/19: 7.3.42, 50 and 7.4.44, 46 |
| 2/21 |
3/7 |
7.5 |
Do set 7.4a in the HLS online homework software. No exercise to turn in this time. Prepare for the first exam on 2/28. |
| 3/7 |
3/14 |
7.6, 8.1, 2 |
Do sets 7.5, 7.6, and the Chapter 7 Review in the HLS
online homework software. Turn in on paper: 7.6.34. Be prepared to present in class on 3/12: Find three everyday examples (from your own life) for variables that are directly proportional. Find three everyday examples of inverse proportionality and three everyday examples of joint variation. Choose examples that are different from the ones we gave in class. |
| 3/14 |
3/21 |
8.1, 3, 4 |
Do sets 8.2 and 8.3 in the HLS online homework software. Turn in on paper: 8.2.40. Make sure you find all solutions. Be prepared to present in class on 3/12: 8.2.3, 24, 42, and 8.3.8, 12, 40 |
| 3/19 |
3/26 |
8.4, 5 |
Do set 8.1 in the HLS online homework software. |
| 3/28 |
4/11 |
8.5, 6 |
Do sets 8.4 and 8.5 in the HLS online homework software. Turn in on paper on 4/16: 8.4.50. Check your answer. Be prepared to present in class on 4/9: 8.4.14, 26, 40, and 8.5.14, 22, 32 |
| 4/9 |
4/18 |
8.8, 9.1 |
Do set 8.6 in the HLS online homework software. Turn in on paper on 4/18: 8.6.5. If there are infinitely many solutions, give a general description of those solutions--as we did in class--and find two specific ordered triples (x,y,z) that solve this system of equations. Be prepared to present in class on 4/16: 8.6.32, 36 |
| 4/18 |
4/25 |
9.1-3 |
Do set 8.8 and the Chapter 8 Review in the HLS online
homework software. Turn in on paper on 4/25: Graph the solution of the following system of inequalities: (1) y ≥ 2x-5 (2) 3x+2y>-3 (3) 6x<5-4y |
| 4/25 |
5/2 |
9.3, 4 |
Do sets 9.1-3 in the HLS online homework software. Turn in on paper on 5/2: Let n be a positive integer and x, y ≥ 0. Prove that the n-th root of (xy) is equal to the product of the (n-th root of x) and the (n-th root of y). Be prepared to present in class on 4/30: 9.1.6, 12, 16, 20, and 9.2.62, 68, and 9.3.2, 4, 12, 16, and 1. Estimate to 3 decimal places the following a) the 4-th root of 13 b) the 5th root of -15 You may use a calculator, but not the 4-th root and the 5-th root function on the calculator. |
| 5/2 |
5/9 |
9.5 |
Do sets 9.4abc and 9.5 in the HLS online homework
software. No more exercises to turn in. |