Unit2PracticeTestAnswersTarget2a

YoucangraphtheseonyourcalculatorinordertocheckyouranswersTarget2b

𝑥 − 3

2 𝑥 − 1 − 3

−2𝑥 + 3

−2 𝑥 + 1 ! + 4

− 𝑥 + 3+ 1

−𝑥

𝑥 + 2 − 1

−3 𝑥 + 4

−𝑥! − 2

12 𝑥 + 3 ! − 5

𝑥 − 2− 3

−14 𝑥

!

− 𝑥 − 3 + 2

𝑥 − 4

− 𝑥 − 2 ! + 3

𝑥 + 4

3 𝑥 + 1

4𝑥! − 6

Target2c

1. Relation:Asetoforderedpairs 𝑥, 𝑦

2. Domain:Theinputs(𝑥values)ofarelation

3. Range:Theoutputs(𝑦values)ofarelation

4. Function:Aspecialrelationinwhicheachinputhasasingleoutput

5. No.Suppose𝑥 = 4,then𝑦 = ±2

6. Yes.Thesquarerootimpliesonlypositiveoutputs,soeach𝑥isassociatedwithjustone𝑦

7. Notafunction Domain: −3, ∞ Range:AllRealNumbers

Yesit’safunction Domain:AllRealNumbers Range: −5, 5

Notafunction Domain: −1, ∞ Range: −∞, 3

Yesit’safunction Domain:AllRealNumbers Range: 3

Notafunction Domain: 2 Range:AllRealNumbers

Notafunction Domain: −4,−3,−2,−1, 1 Range: −4, 2, 3, 4, 5, 6

Yesit’safunction Domain:AllRealNumbers Range: −∞,−1 ∪ 1 ∪ 2, ∞

Yesit’safunction Domain:NA Range: −2, 2

Notafunction Domain: −5, 4.5 Range: −3, 2

Notafunction Domain: −5, 5 Range: −5, 5

Yes,it’safunction Domain: 2, 3, 4, 5, 6 Range: 2, 3, 6

1. 6

2. −2

3. −2

4. 18

5. 8

6. 0 𝑎𝑛𝑑 2

7. !!

8. 1

9. 106

10. −3 𝑎𝑛𝑑 5

11. 1

12. −2 𝑎𝑛𝑑 8

13. 2 𝑎𝑛𝑑 4

14. AllRealNumbers

15. −∞, 4

16. AllRealNumbers

Target2d

1. 2𝑥! − 3𝑥 − 2

2. 𝑥 + 3

3. 3𝑥 − 1

4. 𝑥! − 4𝑥! + 7𝑥 − 6

5. −𝑥! + 4𝑥 − 2

6. 2𝑥 −1

7. 𝑥! − 6𝑥 + 11

8. 4𝑥! + 2

9. 𝑥! − 6𝑥! + 12𝑥 − 8

10. 𝑥! − 2𝑥! + 3

11. 3

12. 8

13. 27

14. 6

Target2e

1. 2

3Right

4Down

2. 1

5Left

3Up

3. 3

1Right

0

Thegraphwouldbeflippedvertically

4. 4

8Down

5. Thegraphwouldbecompressed

verticallybyafactorof4