Unit 2 Test Review
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Unit circle top
2,3,5
Reference angle for 5pie/4
225 degrees
Unit circle bottom
3,4,6
Reference angle for 11pie/6
330 degrees
Reference angle for 219 degrees
39 degrees
Reference angle for 132 degrees
48 degrees
Amplitude
A
Horizontal shift or phase shift
C
Vertical shift or midline
D
To convert from degrees to radians, multiply the
Degree measure by pie/180 degrees
Scale
P/4
Period
P=2pie/B or P=360/B
To convert from radians to degrees, multiply the
Radian measure by 180 degrees/pie
The arc length, s, spanned in a circle of radius r by an angle of theta in radians is
S=rtheta
Cos
X
Sin
Y
The basic sinusoidial function
Y=Af(B(x-c))+D