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Unit 7 Graphing Trigonometric Functions

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Unit 7 Graphing Trigonometric Functions Review Worksheet 1-12 (Analyze Only) 14-18, 26-32 even (Analyze and Graph) y = d + atrig b (x + c) a (amplitude) Multiply a ... – PowerPoint PPT presentation

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Title: Unit 7 Graphing Trigonometric Functions


1
Unit 7 Graphing Trigonometric Functions
  • Review Worksheet
  • 1-12 (Analyze Only)
  • 14-18, 26-32 even
  • (Analyze and Graph)

2
y d atrig b (x c)
  • a (amplitude) Multiply a times (0 1 0 -1 0
    1)

  • SinCos
  • -a Reflection
  • b (period) 2p
  • b b can be factored out
    OR
  • c (starting point) Set (bx __) 0 instead of
  • completing factoring
    with b
  • d (vertical shift)

3
12 y cot (x 3p) 2 4
  • y cot (x 3p)
    To find starting point x 3p 0
  • 2 4

    2 4 2
  • 4(x 3p 0)


  • 2 4
  • 2x 3 p
    0
  • x - 3p/2
  • y cot 1(x 3p) 0r only factor out ½(x __
    ) 2 2
  • Ref.
  • no
  • Amp.
  • 1
  • Per. p
  • ½ p 2 2 p
  • ¼ Per.
  • p

  • 2
  • St. Pt.

4
32 y 1 csc (2x p)
  • 0 1 0 -1 0
  • -1 (0 1 0 -1 0)
  • 0 -1 0 1 0
  • 11111
  • 1 0 1 2 1
  • 2
  • 1

  • 2p/4 4p/4 6p/4

5
32 y csc (2x p) 1
  • y 1 csc (2x p)
  • y 1 csc 2(x p/2)
  • Ref.
  • yes
  • Amp.
  • -1
  • Per.
  • 2p / 2 p
  • ¼ Per.
  • p/4
  • St. Pt.
  • p/2 2p/4
  • To add st.pt. to ¼ per. , get
  • a common denom. (2p/4 p/4)
  • Vert. Sh.
  • 1
  • 0 1 0 -1 0
  • -1 (0 1 0 -1 0)
  • 0 -1 0 1 0
  • 11111
  • 1 0 1 2 1
  • 2
  • 1
  • 2p/4 4p/4 6p/4

6
32 y 1 csc (2x p)

  • 2
  • 1
  • 2p/4 4p/4 6p/4

7
30 y - ½ cos (p x p)
  • y - ½ cos (p x p)
  • y - ½ cos p (x 1)
  • Ref.
  • yes
  • Amp.
  • - ½
  • Per.
  • 2 p/ p 2
  • ¼ Per.
  • ½
  • St. Pt.
  • 1 2/2
  • To add st.pt. to ¼ per, get
  • a common denom. (2/2 ½)
  • Vert. Sh.
  • none
  • 1 0 -1 0 1
  • -½ (1 0 -1 0 1)
  • -½ 0 ½ 0 -½
  • ½
  • 2/2 4/2 6/2

8
30 y - ½ cos (p x p)
  • 1 0 -1 0 1
  • -½ (1 0 -1 0 1)
  • -½ 0 ½ 0 -½
  • ½
  • 2/2 4/2 6/2

9
30 y - ½ cos (p x p)
  • 1/2
  • 2/2 4/2 6/2
  • -1/2

10
28 y -1 3 sin 2x
  • Ref.
  • yes
  • Amp.
  • -3
  • Per.
  • 2p/2 p
  • ¼ Per.
  • p/4
  • St. Pt.
  • 0
  • Vert. Sh.
  • -1
  • 0 1 0 -1 0
  • -3 (0 1 0 -1 0)
  • 0 -3 0 3 0
  • -1 -1 -1 -1 -1
  • -1 -4 -1 2 -1
  • 2
  • 1
  • 0
  • -1 p/4 3p/4 4p/4
  • -2

11
28 y -1 3 sin 2x
  • 0 1 0 -1 0
  • -3 (0 1 0 -1 0)
  • 0 -3 0 3 0
  • -1 -1 -1 -1 -1
  • -1 -4 -1 2 -1
  • 2
  • 1
  • 0
  • -1
    p/4 3p/4 4p/4
  • -2
  • -3

12
28 y -1 3 sin 2x
  • 2
  • 1
  • 0
  • -1
    p/4 3p/4 4p/4
  • -2
  • -3

13
26 y sin(3x p/2)
  • y sin(3x p/2)
  • y sin3(x p/6)
  • Ref.
  • no
  • Amp.
  • 1
  • Per.
  • 2p/3
  • ¼ Per.
  • p/6
  • St. Pt.
  • -p/6
  • Vert. Sh.
  • none
  • 0 1 0 -1 0
  • 1
  • -p/6 p/6 2p/6 3p/6
  • -1

14
26 y sin(3x p/2)
  • 0 1 0 -1 0
  • 1
  • -p/6 p/6 2p/6 3p/6
  • -1

15
26 y sin(3x p/2)
  • 1
  • -p/6 p/6 2p/6 3p/6
  • -1

16
18 y -1 csc x
  • Ref.
  • no
  • Amp.
  • 1
  • Per.
  • 2p
  • ¼ Per.
  • p/2
  • St. Pt.
  • 0
  • Vert. Sh.
  • 1
  • 0 1 0 -1 0
  • -1 -1 -1 -1 -1
  • -1 0 -1 -2 -1
  • 0
  • -1 p/2 3p/2 4p/2
  • -2

17
18 y -1 csc x
  • 0 1 0 -1 0
  • -1 -1 -1 -1 -1
  • -1 0 -1 -2 -1
  • 0
  • -1 p/2 3p/2 4p/2
  • -2

18
18 y -1 csc x
  • 0
  • -1 p/2 3p/2 4p/2
  • -2

19
16 y -2 cos x
  • Ref.
  • yes
  • Amp.
  • - 2
  • Per.
  • 2p
  • ¼ Per.
  • p/2
  • St. Pt.
  • 0
  • Vert. Sh.
  • none
  • 1 0 -1 0 1
  • -2(1 0 -1 0 1)
  • -2 0 2 0 -2
  • 2
  • 1
  • 0
  • -1 p/2 3p/2 4p/2
  • -2

20
16 y -2 cos x
  • 1 0 -1 0 1
  • -2(1 0 -1 0 1)
  • -2 0 2 0 -2
  • 2
  • 1
  • 0
  • -1 p/2 3p/2 4p/2
  • -2

21
16 y -2 cos x
  • 2
  • 1
  • 0
  • -1 p/2 3p/2 4p/2
  • -2

22
14 y ½ sec x
  • Ref.
  • no
  • Amp.
  • ½
  • Per.
  • 2p
  • ¼ Per.
  • p/2
  • St. Pt.
  • 0
  • Vert. Sh.
  • none
  • 1 0 -1 0 1
  • ½ (1 0 -1 0 1)
  • ½ 0 -½ 0 ½
  • ½
  • 0 p/2 3p/2 4p/2

23
14 y ½ sec x
  • 1 0 -1 0 1
  • ½ (1 0 -1 0 1)
  • ½ 0 -½ 0 ½
  • ½

  • 0 p/2 3p/2 4p/2

24
14 y ½ sec x
  • ½

  • 0 p/2 3p/2 4p/2
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