4. Cosine
Sine
= 35
A = 35
A
. We found the amplitude (A) by
determining the distance from the
maximum and minimumum values to the
__
average value sinusoidal axis.
. We also know that the graph is stretched by
35 units.
5. Cosine
Sine
= __
2π __
2π
B B=
365 365
We found out what B is by
__
2π 2π
dividing to the period.
B =
Period
The distance along the xaxis
required to make on wave is
Period = __
2π the period
B
6. 2π d
( ) + 5
______
t(d) = 35cos 365
Sine *Relationship between sine and cosine
= 35
A
__ π
( )
2π
x 2
____
sin(x) = cos
B= 365
π
( )
= 91
C ____
x + 2
cos(x) = sin
D= 5 The graph of sine is equal to the
graph of cosine shifted to the left
π
by .
____
2π
____
2
7. Sine Cosine
D=5
D= 5
D is called the vertical shift a.k.a average value.
It determines the sinusoidal axis.