Solutions Rad Rat 17-18.pdf

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EP 3.1

1. 6 2. -6

3. Non-real 4. -4

5. Non-real 6. -3

7. 0.5

8. 1 4 9. 1 3

10. √643 = 4

11. 3√27= 3

12. 65 = 7776

13. 84 = 4096

14. 103 _{= 1000} 15. 4√2401= 7

16.4𝑥

17.𝑥4_𝑦9 18. 3𝑦2 19.8𝑏24

20.𝑥2𝑦3

21. 𝑦4 22. 𝑘3

23. (𝑥 + 3)

24. (𝑥 + 1)2 25. √73 4 26. √62 3 27. √26 1 28. √83 4 29. √643 2 30. √812 1 31. √5𝑦2

32. √𝑥4 3 33. √𝑦3 1 34. √𝑥3 4 35. √𝑦5 3 36. √𝑎3 7_𝑏7

EP 3.2

1.

Domain: [2, ∞)

Range: [0, ∞)

2.

Domain: [−2, ∞)

Range: [−1, ∞)

3.

Domain: [3, ∞)

Range: [4, ∞)

4.

Domain: [0, ∞)

Range: [0, ∞)

5.

Domain: [−4, ∞)

Range: [−2 ∞)

6.

Domain: [0, ∞)

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7.

Domain: [0, ∞)

Range: [0, ∞)

8.

Domain: [4, ∞)

Range: [0, ∞)

9.

Domain: [0, ∞)

Range: (−∞, 0]

10.

Domain: [0, ∞)

Range: (−∞, 5]

11.

Domain: [1, ∞)

Range: (−∞, 0]

12.

Domain: [0, ∞)

Range: [3, ∞)

13.

14.

15.

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17.

18. Reflected over y-axis 19. Stretch by a factor of 3 20. Shifted up by 5 units 21. 𝑓(𝑥) = √−2𝑥

22. 𝑓(𝑥) = −√𝑥 − 7 − 2

23. 𝑔(𝑥) = 2√𝑥 − 5 − 9

EP 3.3

1.

Domain: (−∞, ∞)

Range: (−∞, ∞)

2.

Range: (−∞, ∞)

3.

Range: (−∞, ∞)

4.

Range: (−∞, ∞)

5.

Range: (−∞, ∞)

6.

Range: (−∞, ∞)

7.

Range: (−∞, ∞)

8.

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9.

Range: (−∞, ∞)

10.

Range: (−∞, ∞)

11.

Range: (−∞, ∞)

12.

Range: (−∞, ∞)

13.

14.

15.

16.

17.

18. Shift to the left 6 units 19.Reflected on x-axis

20. Vertical stretch by a factor of 4

21. 𝑓(𝑥) = −2

3√𝑥 3

22. 𝑓(𝑥) = √𝑥 − 93 + 1

23. 𝑓(𝑥) = −1

2√𝑥 + 4 3

+ 4

CW CEFGRF

1. 𝑔(𝑥) = √𝑥 + 5

2. 𝑔(𝑥) = √𝑥 + 3

3. 𝑔(𝑥) = −√𝑥

4. 𝑔(𝑥) = √𝑥 + 2 − 1

5. 𝑔(𝑥) = √𝑥 − 2 + 6

6. 𝑔(𝑥) = √−𝑥

7. 𝑔(𝑥) = 2√𝑥

8. 𝑔(𝑥) = √−𝑥 − 5

9. 𝑔(𝑥) = 𝑥√𝑥 + 4

10. 𝑔(𝑥) = √𝑥 − 23

11. 𝑔(𝑥) = − √𝑥3

12. 𝑔(𝑥) = 4√𝑥3

13. 𝑔(𝑥) = √𝑥3 + 7

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15. 𝑔(𝑥) = √𝑥 − 43 − 3

16. 𝑔(𝑥) = √𝑥 − 33 + 3

17. 𝑔(𝑥) = √𝑥 + 53 + 2

18. 𝑔(𝑥) = − √𝑥3 + 3

EP 3.4 A

1. 𝑥 = 11

2. 𝑥 = 48

3. 𝑥 = 29

4. 𝑥 = 37

5. 𝑥 = 25

6. 𝑥 = 2

7. 𝑥 = 65

8. No solution 9. 𝑥 = −7

10. 𝑥 = 11

11. 𝑥 = 14

12. 𝑥 =1

2 13. 𝑥 = −8

14. 𝑥 = 1

15. 𝑥 = 8

16. 𝑥 = −64

17. 𝑥 = 126

18. 𝑥 = 3

19. 𝑥 = 32

20. 𝑥 = 20

21. 0.597 𝑚𝑒𝑡𝑒𝑟𝑠

22. 𝑑 = 4,000 𝑚𝑒𝑡𝑒𝑟𝑠 𝑑 = 4 𝑘𝑖𝑙𝑜𝑚𝑒𝑡𝑒𝑟𝑠

23. 𝑥 = √28 = 2√7

EP 3.4 B

1. 𝑥 = 3 𝑅. 𝑆. 𝑥 = −4 𝐸. 𝑆

2. 𝑥 = 3 𝑅. 𝑆. 𝑥 = 0 𝐸. 𝑆

3. 𝑥 = 4 𝑅. 𝑆. 𝑥 = −1 𝐸. 𝑆

4. 𝑥 = 11

5. 𝑥 = 12 𝑅. 𝑆. 𝑥 = 5 𝐸. 𝑆

6. 𝑥 = 3 𝑅. 𝑆. 𝑥 = −2 𝐸. 𝑆

7. 𝑥 = 2 𝑅. 𝑆. 𝑥 = −3 𝐸. 𝑆

8. 𝑥 = 4 𝑅. 𝑆. 𝑥 = 7 𝑅. 𝑆

9. 𝑥 = 5 𝑅. 𝑆. 𝑥 = 2 𝑅. 𝑆

10. 𝑥 = 7 𝑅. 𝑆. 𝑥 = −3 𝐸. 𝑆

11. 𝑥 = 10

12. 𝑥 = 5 𝑅. 𝑆. 𝑥 = −4 𝑅. 𝑆

13. 𝑁𝑜 𝑠𝑜𝑙𝑢𝑡𝑖𝑜𝑛

EP 3.4 C Honors

1. 𝑥 = 1

2. 𝑥 = −13

3. 𝑥 = 3

4. 𝑥 = −12

5. 𝑥 = 20

6. 𝑥 = 12

7. 𝑥 = 27

8. 𝑁𝑜 𝑆𝑜𝑙𝑢𝑡𝑖𝑜𝑛

9. 𝑥 = 72

10. 𝑥 = −8

11. 𝑥 = 1

12. 𝑥 = 10

13. 𝑟 = −19

14. 𝑁𝑜 𝑆𝑜𝑙𝑢𝑡𝑖𝑜𝑛

15. 𝑥 = −1

16. 𝑥 = 32

17. 58.8 𝑠𝑞𝑢𝑎𝑟𝑒 𝑚𝑖𝑙𝑒𝑠

18. 4 ℎ𝑜𝑢𝑟𝑠 9 𝑚𝑖𝑛𝑢𝑡𝑒𝑠

EP 3.5H

1. 3

𝑥, 𝑥 ≠ 0

2. 3𝑥(𝑥−3)

𝑥−3 = 3𝑥, 𝑥 ≠ 3

3. 2

𝑥+2, 𝑥 ≠ 4, −2

4. 𝑥−2

3 , 𝑥 ≠ 1

5. 𝑥−3

𝑥+3, 𝑥 ≠ −3, −2

6. 1

𝑚−2, 𝑥 ≠ −4,2

7. (𝑥−5)

2𝑥−3, 𝑥 ≠ −3, 3 2

8. 1−4𝑛

𝑛 , 𝑛 ≠ 0

9. 4𝑥2 − 2𝑥 − 1, 𝑥 ≠ 0 10. 4

5, 𝑛 ≠ 0

11. 3𝑥 + 4 +9

𝑥, 𝑥 ≠ 0

12. 𝑥 + 2, 𝑥 ≠ 10, −2

13. (𝑥−5)(𝑥+1)

𝑥+1 , 𝑥 ≠ −1

14. 1

𝑥−9, 𝑥 ≠ 9

15. −𝑥(𝑥 − 3), 𝑥 ≠ 3 16. 1

2𝑥−7, 𝑥 ≠ − 7 2,

7 2

17. 4𝑥2

2𝑥−1, 𝑥 ≠ 0, 1 2

18. 5

𝑎+8, 𝑥 ≠ 3, −8

19. 9𝑥2+6𝑥+4

𝑥+6 , 𝑥 ≠ −6, 2 3

20. 3𝑥2−2

𝑥+1 , 𝑥 ≠ −9, −1

21. 𝑥−2

𝑥+2, 𝑥 ≠ −2

22. 𝑥−4

𝑥2_−4𝑥+16, 𝑥 ≠ −4

EP 3.5R

1. 4

5, 𝑛 ≠ 0

2. 3

𝑥, 𝑥 ≠ 0

3. 2

𝑥+2, 𝑥 ≠ 4, −2

4. 𝑥−2

3 , 𝑥 ≠ 1

5. 3𝑥(𝑥−3)

𝑥−3 = 3𝑥, 𝑥 ≠ 3

6. 1

𝑚−2, 𝑥 ≠ −4,2

7. 1

𝑥+5, 𝑥 ≠ 5, −5

8. (𝑥−5)(𝑥+1)

𝑥+1 = 𝑥 + 1, 𝑥 ≠ −1

9. 𝑥−3

𝑥+3, 𝑥 ≠ −3, −2

10. 𝑥 + 2, 𝑥 ≠ 10 11. 𝑥−2

3 , 𝑥 ≠ 3

12. 𝑥 − 4, 𝑥 ≠ −5 13. 𝑥−2

𝑥+1, 𝑥 ≠ −7, −1

14. 𝑥−2

𝑥+2, 𝑥 ≠ −2

EP 3.6

1. 28

5𝑥2, 𝑥 ≠ 0

2. 𝑥

2, 𝑥 ≠ 0, −1

3. 2(𝑥 − 4), 𝑥 ≠ −4,5 4. 2

𝑥−5, 𝑥 ≠ 6, −5,5

5. 𝑥 + 2, 𝑥 ≠ −5

6. 3(4𝑥+1)

𝑥−1 , 𝑥 ≠ −2, 1

7. 4𝑥

(𝑥+1)(𝑥+2), 𝑥 ≠ 1, −1, 2, −2

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9. 𝑥−10

2(𝑥−5)(𝑥−2), 𝑥 ≠ 5, −5, 2, −2

10. 2

3𝑥, 𝑥 ≠ 0, 2, −7, −3

11. 𝑥−5

2 , 𝑥 ≠ −1,1, −4

12. (𝑥+5)(𝑥+5)

5𝑥 , 𝑥 ≠ 0, 5, 2

13. 𝑥+6

𝑥−20, 𝑥 ≠ 6, 20, −1

14. 𝑥2 − 1, 𝑥 ≠ 0, −3 15. 𝑥+2

𝑥 , 𝑥 ≠ 0, 2, −3

16. 3, 𝑎 ≠ 3, −3

EP 3.7

1. 8𝑥(𝑥−3)

3 , 𝑥 ≠ −3,3

2. 𝑥+1

𝑥−1, 𝑥 ≠ 3, 1

3. 𝑥−3

2𝑥 , 𝑥 ≠ −6,3

4. 2(𝑥+2)

𝑥−1 , 𝑥 ≠ 1, −2

5. −2(𝑥−3)

3(𝑥−1) , 𝑥 ≠ 5, 1, 3

6. 3(𝑥+4)

8 , 𝑥 ≠ 4, −4

7. 𝑥+3

2(𝑥+1), 𝑥 ≠ 1

8. 9(𝑥+9)

𝑥3 , 𝑥 ≠ 0, 3

9. 9

2(𝑥+2), 𝑥 ≠ 2, −2, 9

10. 4𝑥(2𝑥−1)

3(𝑥+1)(𝑥−1), 𝑥 ≠ −1, 1

11. (𝑥+2)(𝑥+5)

3(𝑥−1) , 𝑥 ≠ 6, −5

12. (𝑥−2)

𝑥−3 , 𝑥 ≠ 3, −2

13. 𝑥−5

𝑥+7, 𝑥 ≠ −7, 1, −8

14. 4

𝑥, 𝑥 ≠ 0, 1

15. 𝑥+2

4𝑥(𝑥+6) , 𝑥 ≠ 6, −6, −2

EP 3.8

1. 2

𝑥, 𝑥 ≠ 0 2. 7, 𝑥 ≠3

2 3. 2, 𝑥 ≠ −1

4. 1

5𝑥+7, 𝑥 ≠ − 7 5, +

7 5

5. −1(𝑥+1)

𝑥2₋₄ , 𝑥 ≠ 2, −2 6. 3

𝑥+3, 𝑥 ≠ −3 7. −1

𝑥(𝑥−1), 𝑥 ≠ 0, 1 8. 2𝑎+𝑏

𝑎2 , 𝑎 ≠ 0 9. 12−𝑥

2𝑥+2= 12−𝑥

2(𝑥+1), 𝑥 ≠ −1 10. 7

3𝑥+6, 𝑥 ≠ −2 11. 11

6(𝑥−5), 𝑥 ≠ 5

12. 4

(𝑝−2)(𝑝+2), 𝑝 ≠ −2, 2 13. 2𝑥−9

𝑥2_−3𝑥, 𝑥 ≠ 0, 3

14. 15

(𝑥−2)(𝑥−1)(𝑥+3), 𝑥 ≠ 2, 1, −3 15. −𝑥+3

30 16. 1

𝑥+7, 𝑥 ≠ −7, −4 17. 𝑥2+14𝑥−49

(𝑥+7)(𝑥−7), 𝑥 ≠ 7, −7 18. 𝑥2+11𝑥

(𝑥+5)(𝑥+8), 𝑥 ≠ −5, −8 19. 10𝑥−12

𝑥3_−4𝑥2_+3𝑥, 𝑥 ≠ 0, 3, 1 20. 7𝑥−3

2𝑥(𝑥−7)(𝑥−1), 𝑥 ≠ 0, 7, 1

21. 𝑥+2

(𝑥−4)(𝑥+1)(𝑥−1), 𝑥 ≠ 4, −1, 1 22. 𝑥2+4

(𝑥+2)(𝑥+2)(𝑥−2), 𝑥 ≠ 2, −2 23. 𝑥

𝑦, 𝑦 ≠ 0 24. (𝑏+1)(𝑏+1)

(𝑏+2)(𝑏−2), 𝑏 ≠ 2, −2

EP 3.9H

1. 𝑥 = −1, 12, 𝑥 ≠ 0

2. 𝑥 = −9, 𝑥 ≠ 0

3. 𝑥 = 5, 𝑥 ≠ 0

4. 𝑥 = −7, 𝑥 ≠ 7,0

5. 𝑥 = −4, 𝑥 ≠ −1, 0

6. 𝑥 = 14, 𝑥 ≠ −5,1

7. 𝑥 = 3, 𝑥 ≠ 0, 3 𝑁𝑜 𝑆𝑜𝑙𝑢𝑡𝑖𝑜𝑛

8. 𝑥 = −2, 𝑥 ≠ 1, −2

3 9. 𝑥 = 1, 𝑥 ≠ 7, 3

10. 𝑥 =17

2 , 𝑥 ≠ 1, −4 11. 𝑥 = −4, 1, 𝑥 ≠ 4, 0

12. 𝑥 = −3, 𝑥 ≠ 2, −2

EP 3.9R

1. 𝑥 = 3, 𝑥 ≠ 1

2. 𝑥 = 5, 𝑥 ≠ 0

3. 𝑥 = −4, 𝑥 ≠, 0

4. 𝑥 = −9, 𝑥 ≠ 0

5. 𝑥 = −2, 𝑥 ≠ 1, −2

3 6. 𝑥 = 0, 𝑥 ≠ 3, −4

7. 𝑥 = 5, 𝑥 ≠ 1

8. 𝑥 = 1, 𝑥 ≠ 7, 3

9. 𝑥 = 14, 𝑥 ≠ −5,1

10. 𝑥 = 1, −2, 𝑥 ≠ 0, 2

EP 3.10

1. 3.429 ℎ𝑜𝑢𝑟𝑠

2. 60 𝑚𝑖𝑛𝑢𝑡𝑒𝑠

3. Benny will take 4 hours 4. 102.86 𝑚𝑖𝑛𝑢𝑡𝑒𝑠

5. 4.603 𝑑𝑎𝑦𝑠

6. 27.27 ℎ𝑜𝑢𝑟𝑠

EP 3.12

1. Domain: all reals except

𝑥 = 0

Range: all reals except

𝑦 = 0

Vert. Asy: 𝑥 = 0

Horz. Asy: 𝑦 = 0

EB: 𝑅: 𝑥 → ∞, 𝑦 → 0 𝐿: 𝑥 → ∞, 𝑦 → 0

𝑥 = −3

𝑦 = 0

Vert. Asy: 𝑥 = −3

Horz. Asy: 𝑦 = 0

EB: 𝑅: 𝑥 → ∞, 𝑦 → 0 𝐿: 𝑥 → ∞, 𝑦 → 0

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𝑦 = 2

Vert. Asy: 𝑥 = 0

Horz. Asy: 𝑦 = 2

EB: 𝑅: 𝑥 → ∞, 𝑦 → 2 𝐿: 𝑥 → ∞, 𝑦 → 2

4.

Domain: all reals except 𝑥 = −2

Range: all reals except 𝑦 = 0

Horz. Asy: 𝑦 = 0

5.

Horz. Asy: 𝑦 = 0

6.

Domain: all reals except 𝑥 = 0

Vert. Asy: 𝑥 = 0

Horz. Asy: 𝑦 = 1

7.

Range: all reals except 𝑦 = −2

Vert. Asy: 𝑥 = 0

Horz. Asy: 𝑦 = −2

8.

Vert. Asy: 𝑥 = 3

Horz. Asy: 𝑦 = 1

9.

Horz. Asy: 𝑦 = 2

10.

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Vert. Asy: 𝑥 = 5

Horz. Asy: 𝑦 = 0

11.

Horz. Asy: 𝑦 = 0

12.

2 Range: all reals except 𝑦 = 0

2 Horz. Asy: 𝑦 = 0

13. Answer will vary

𝑓(𝑥) = 7

𝑥+3

14. Answer will vary

𝑓(𝑥) = 2

𝑥−5+ 3 15. Answer will vary

𝑓(𝑥) = 8

𝑥+5

EP 3.12

1. See Mrs. Mikesell Solution

2. See Mrs. Mikesell Solution 3. See Mrs. Mikesell Solution 4. See Mrs. Mikesell Solution 5. See Mrs. Mikesell Solution 6. See Mrs. Mikesell Solution 7. Answer will vary

𝑓(𝑥) = 3

𝑥−5 8. Answer will vary

𝑓(𝑥) = 6

𝑥−4− 3 9. Answer will vary

𝑓(𝑥) = 1

(𝑥∓2)(𝑥−1) 10.Answer will vary

𝑓(𝑥) = 7

(𝑥+3)(𝑥−5)+ 1 11.Answer will vary

𝑓(𝑥) = 11

𝑥+7− 2 12.Answer will vary

𝑓(𝑥) = 14

𝑥++1− 2

EP 3.3

1. 𝑥 ≠ −3, 𝑥 = −3, Point of

discontinuity,

2. 𝑥 ≠ 7, 𝑥 = 7, vertical

asymptote

3. 𝑥 ≠ 4, 2 ; 𝑥 = 4 Point of

discontinuity, 𝑥 = 2, vertical

asymptote

4. 𝑥 ≠ 3, −3 ; 𝑥 = 3 Point of

discontinuity, 𝑥 = 2 − 3

vertical asymptote 5. Neither

6. 𝑥 ≠ 8, −2 ; 𝑥 = −2 Point of

discontinuity, 𝑥 = 8, vertical

asymptote 7.

Domain: (−∞, −1) ∪ (−1, ∞)

Range: (−∞, 1) ∪ (1, ∞)

Horz. Asy: 𝑦 = 1

8.

Domain: (−∞, −4) ∪ (−4,2) ∪ (2, ∞) Range: (−∞, 0) ∪ (0, ∞)

Horz. Asy: 𝑦 = 1

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Domain: (−∞, 1) ∪ (1, ∞)

Range: (−∞, 1) ∪ (1, ∞)

Vert. Asy: 𝑥 = 1

Horz. Asy: 𝑦 = 1

10.

Domain:(−∞, −4) ∪ (−4, −3) ∪ (−3, ∞) Range: (−∞, 0) ∪ (0, ∞)

Vert. Asy: 𝑥 = −4, 𝑥 = 2

Horz. Asy: 𝑦 = 0

11.

Domain: (−∞, 0) ∪ (0, ∞)

Range: (−∞, 0)

Vert. Asy: 𝑥 = 0

Horz. Asy: 𝑦 = 0

12.

Domain: (−∞, 0) ∪ (0,4) ∪ (4, ∞)

Range: (−∞, 0) ∪ (0, ∞)

Vert. Asy: 𝑥 = 4

Horz. Asy: 𝑦 = 0

13.

Domain: (−∞, −1) ∪ (−1,1) ∪ (−1, ∞) Range: (−∞,1

3) ∪ (10, ∞)

Vert. Asy: 𝑥 = 1, 𝑥 = −1

Horz. Asy: 𝑦 =1 3

14.

Domain: (−∞, −4) ∪ (−4,4) ∪ (4, ∞) Range: (−∞, 0) ∪ (0, ∞)

Vert. Asy: 𝑥 = 4, 𝑥 = −4

Horz. Asy: 𝑦 = 0

15.

Domain: (−∞, −3) ∪ (−3,3) ∪ (3, ∞) Range: (−∞, ∞)

Vert. Asy: 𝑥 = 3, 𝑥 = −3

Horz. Asy: 𝑦 = 0

16.

Domain: (−∞, −3) ∪ (−3,6) ∪ (6, ∞) Range: (−∞, ∞)

Vert. Asy: 𝑥 = 6, 𝑥 = −3

Horz. Asy: 𝑦 = 0

17.

Domain: (−∞, 2) ∪ (2, ∞)

Range: (−∞, −4) ∪ (−4, ∞)

Vert. Asy: 𝑥 = 2

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18.

Domain: (−∞, −4) ∪ (4,6) ∪ (6, ∞)

Range: (−∞, 0) ∪ (0, ∞)

Vert. Asy: 𝑥 = 6

Horz. Asy: 𝑦 = 0

19.

Domain: (−∞, −3) ∪ (−3,7) ∪ (7, ∞) Range: (−∞, 0) ∪ (0, ∞)

Horz. Asy: 𝑦 = 0

20.

Domain: (−∞, −3) ∪ (−3,0) ∪ (0, ∞) Range: (−∞, 0) ∪ (0, ∞)

Horz. Asy: 𝑦 = 0

21.

Domain: (−∞, −1) ∪ (−1,1) ∪ (1, ∞) Range: (−∞, −3) ∪ (0, ∞)

Vert. Asy: 𝑥 = 1, 𝑥 = −1

Horz. Asy: 𝑦 = 0

22.

Domain: (−∞, 1) ∪ (1, ∞)

Range: (−∞, ∞)

Vert. Asy: 𝑥 = 1

Slant Asy: 𝑦 = −𝑥 − 2

23.

Domain: (−∞, −1) ∪ (−1, ∞)

Range: (−∞, −4) ∪ (0, ∞)

Slant Asy: 𝑦 = 𝑥 − 1

24.

Domain: (−∞, −2) ∪ (−1,1) ∪ (2, ∞)

Range: Don’t Due Vert. Asy: 𝑥 = 2

Slant Asy: 𝑦 = 𝑥

EP 3.14

1. 𝑓−1_{(𝑥) = (}𝑥 7)

2

2. 𝑓−1(𝑥) = (𝑥 − 3)3_{− 1} 3. 𝑓−1_{(𝑥) =}1

𝑥− 9 4. 𝑓−1(𝑥) = 3

𝑥−1 5. 𝑓−1_{(𝑥) = (}𝑥−5

3 ) 2

+ 2

6. 𝑓−1(𝑥) = (−𝑥

3 ) 3

7. 𝑓−1_{(𝑥) = (𝑥 + 2)}3_{− 5} 8. 𝑓−1(𝑥) = −6

𝑥+1− 2 9. 𝑓−1_{(𝑥) = (}𝑥+4

3 ) 2

− 1

10. 𝑓−1_{(𝑥) = (𝑥 + 2)}2_{− 4} 11. 𝑓−1(𝑥) = (𝑥−2

7 ) 3

− 5

12. 𝑓−1(𝑥) =−3

𝑥 − 2 13. 𝑓−1_{(𝑥) =} 3

𝑥−2− 1 14. 𝑓−1(𝑥) = (𝑥+3

2 ) 2

15. 𝑓−1_{(𝑥) = (}𝑥+7 2 )

3

− 4

16. 𝑓−1_{(𝑥) =} 3 𝑥+3+ 3 17. 𝑓−1(𝑥) =1

(11)

EP 3.15

1. Rate of change 1 5 2. Rate of change 1 2 3. Rate of change 2 5 4. Rate of change 1

5. Rate of change 1 3 6. Rate of change −1

7 7. Rate of change −1

5 8. Rate of change 1

9. Rate of change 1

10.Rate of change 0.45 inches

per month 11. ~