Unit 2 Test Review

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