Trig Graphing

Setting up the Trig graph:

x

y

.2

or 90every labelonly Weradians. 6

or 30

hblock wortevery with radians,in axis- x thelabel We

unit. 1 toequal blocks 2

every with integers, with axis-y thelabel We

Lets graph y=sin(x)

0,1

1,0

0,1

1,0

2sin,

2

3sin,sin,

2sin,0sin

:points critical five are There

00sin

12

sin

0sin

12

3sin

02sin

20 interval on the

functionsin thegraphedjust We

x

Notice that the graph doesn’t stop on the interval.

Graphs of y = a sin x and y = a cos x

Lets graph y=cos(x)

0,1

1,0

0,1

1,0

2cos,

2

3cos,cos,

2cos,0cos

:points critical five are There

10cos

02

cos

1cos

02

3cos

12cos

20 interval on the

function cos thegraphedjust We

x

Notice that the graph doesn’t stop on the interval.

Graphs of y = a sin x and y = a cos x

Lets graph y=sin(x)

22 interval on thegraph Lets x

What is the maximum value of this function?What is the minimum value of this function?What are the zeroes of this function?

1

1 2,,0,,2

Lets graph y=cos(x)

22 interval on thegraph Lets x

What is the maximum value of this function?What is the minimum value of this function?What are the zeroes of this function?

1

1

2

3,

2,

2,

2

3

Homework

Page 1#3 – just graph them on the given

interval#4 – just graph on the interval#5 – just graph on the interval

Page 1, #3

Page 1, #4

Page 1, #5

Page 1, #6