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# MATH 151 Homework

MATH 151
Unit
1 Homework

 Section Read Exercises Section 2.1 Functions and Their Representation pp. 74 - 85 p. 139 1 - 29 odd Section 2.2 Linear Functions p. 99 p. 140 31 – 45 odd Section 2.3 The Slope of a Line p. 113 p. 140 47 – 57 odd, 58, 62 Section 2.4 Equations of Lines and Linear Models pp. 136 – 138 p. 141 63 –71, 73, 75 – 78, 85, 87, 90 p. 162 101 – 107 odd Section 3.1 Linear Equations pp. 150 –160 p. 161 31 – 53 odd, 111, 113 Section 3.3 Linear Inequalities pp. 177 –185 p. 185 11, 21, 23, 25, 29, 33, 36, 43, 47, 53, 55, 66, 75, 77, 91 Section 3.4 Compound Inequalities pp. 191 - 197 p. 198 13–41 odd, 49, 53, 59–77 odd, 103, 105 Section 3.5 Absolute Value Equations and Inequalities pp. 201 – 208 p. 209 9, 11, 15, 19–33 odd, 45, 53–71 odd p. 144 1–15 odd Section 4.1 System of Linear Equations in Two Variable p. 237 p. 238 11, 15, 21, 27, 31, 47, 53, 57, 63, 65 Section 4.2 The Sub p. 250 p. 253 9, 11, 19, 27, 35, 37, 49, 53, 65, 71, 89, 91, 97 Section 4.5 Systems of Linear Equations in Three Variables pp. 274–280 p. 284 19, 21, 23, 25, 29, 35, 37 p. 223 29–49 odd Trigonometry Day 1 pp. T* 3 - 11 p. T12 1–19 odd, 35, 37, 39, 41,a,b, 43–55 odd p. 313 1, 12, 19, 21 Trigonometry Day 2 pp. T16 – 24 p. 24 5–19 odd, 31–41 odd, 45, 53–56, 59–65 odd p. 316 10, 11, 13–20, 21b, 24, 28

* “T” is the Trigonometry Supplement

Section 2.3
p. 140

62) slope: m = 1/2, y - intercept : (0,-2) ,

Section 2.4
p. 141
64) slope: m = -2 , x - intercept: (2,0) , y - intercept: (0,4)

b) f (2007) = 1, 050, 000; cumulative number of U.S. AIDS cases reported in 2007.

Section 3.3
p. 216

Trigonometry Day 1
p. 313
12) ( -4, 2, -5 )

Trigonometry Day 2
p. 24
54)
a) tan 67° 2.3559
b) cot 42° 1.1106

56)
a) tan3°  .0524
b) csc18° ≈  3.2361

MATH 151
Unit 2 Homework

 Section Read Exercises Section 5.1 Polynomial Functions pp. 320-329 p. 330 9, 35, 45, 53, 71, 75, 81, 93, 101, 103, 119, 131 Section 5.2 Multiplication of Polynomials pp. 334-342 p. 343 5, 7, 8, 13, 21, 27, 39, 41, 43, 45, 49, 59, 63, 69, 77, 79, 85, 87-101 odd Section 5.3 Factoring Polynomials pp. 346-354 p. 354 13, 17, 21, 25, 35, 43, 45, 51, 53, 57, 67, 71, 79, 83, 89, 91, 99, 109 Section 5.4 Factoring Trinomials pp. 358-365 p. 366 81, 85, 87 Section 5.5 Special Types of Factoring pp. 368-373 p. 373 13, 15, 29, 37, 45, 57, 59, 67, 69 Section 5.6 Summary of Factoring pp. 375-379 p. 379 1, 3, 19, 21, 25, 27, 31, 33, 37, 39, 41, 43, 49, 53, 55 Section 5.7 Polynomial Equations pp. 381-388 p. 388 11, 21, 23, 29, 33, 35, 39-42 all, 45, 47, 51, 53, 55, 59, 79 Section 6.1 Introduction to Rational Functions and Equations pp. 403 –410 p. 412 1, 2, 8, 9, 11, 13, 19 – 27 odd, 37, 41 – 47 odd, 61, 67, 69, 79, 81, 101, 103 Section 6.2 Multiplication and Division of Rational Expressions pp. 417 – 423 p. 425 23 – 45 odd, 63 –74 odd, 83 – 97 odd Section 6.3 Addition and Subtraction of Rational Expressions pp. 428 – 435 p. 437 4, 31, 39, 43, 49, 51, 53, 55, 59, 69, 97 Section 6.4 Rational Equations pp. 440 – 445 p. 448 5 – 21 odd, 29 – 41 odd, 46, 51, 53, 61, 63, 67, 87, 93, 95, 97 Section 6.5 Complex Fractions pp. 452 – 458 p. 458 1, 3, 7, 9, 13, 15, 23 – 39 odd

Section 5.2
p. 343
8) No, it equals x2 + 2x + 1.

Section 5.7
p. 388
40) Various
42) Not possible

Section 6.1
p. 412
2) 4
8) 0

Section 6.3
p. 437
4) (x + 5)(x – 5)

Section 6.4
p. 448
46) –2

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