Pre-Calc Homework Solutions 1

# Pre-Calc Homework Solutions 1 - Section 1.1 1 Chapter 1...

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Chapter 1 Prerequisites for Calculus Section 1.1 Lines (pp. 1–9) Quick Review 1.1 1. y 5 2 2 1 4(3 2 3) 5 2 2 1 4(0) 5 2 2 1 0 5 2 2 2. 3 5 3 2 2( x 1 1) 3 5 3 2 2 x 2 2 2 x 5 2 2 x 5 2 1 3. m 5 } 2 5 2 2 3 4 } 5 } 2 1 1 } 5 2 1 4. m 5 } 2 3 2 2 ( ( 2 2 3 1 ) ) } 5 } 5 4 } 5. (a) 3(2) 2 4 1 } 1 4 } 2 0 5 6 2 1 5 5 Yes (b) 3(3) 2 4( 2 1) 0 5 13 5 No 6. (a) 7 0 2 2( 2 1) 1 5 7 5 2 1 5 Yes (b) 1 5 2 2( 2 2) 1 5 1 9 No 7. d 5 ˇ ( x w 2 w 2 w x w 1 ) w 2 w 1 w ( w y 2 w 2 w y w 1 ) w 2 w 5 ˇ (0 w 2 w 1 w ) 2 w 1 w ( w 1 w 2 w 0 w ) 2 w 5 ˇ 2 w 8. d = ˇ ( x w 2 w 2 w x w 1 ) w 2 w 1 w ( w y 2 w 2 w y w 1 ) w 2 w 5 ! (1 § 2 § 2 § ) 2 § 1 § 1 § 2 § } 1 3 } § 2 § 1 § 2 2 § 5 ! ( 2 § 1 § ) 2 § 1 § 1 § 2 § } 4 3 } § 2 2 § 5 ! 1 § 1 § } 1 § 9 6 } § 5 ! } 2 9 § 5 } § 5 } 5 3 } 9. 4 x 2 3 y 5 7 2 3 y 5 2 4 x 1 7 y 5 } 4 3 } x 2 } 7 3 } 10. 2 2 x 1 5 y 5 2 3 5 y 5 2 x 2 3 y 5 } 2 5 } x 2 } 3 5 } Section 1.1 Exercises 1. D x 5 2 1 2 1 5 2 2 D y 5 2 1 2 2 5 2 3 2. D x 5 2 1 2 ( 2 3) 5 2 D y 5 2 2 2 2 5 2 4 3. D x 5 2 8 2 ( 2 3) 5 2 5 D y 5 1 2 1 5 0 4. D x 5 0 2 0 5 0 D y 5 2 2 2 4 5 2 6 5. (a, c) (b) m 5
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