TRIGO VOCAB UNDERSTANDING

The------measure of an angle is defined as the length of the corresponding arc on the unit circle.

• degree

• radian

The ratio of the change in the central angle to the time required for the change is known as..............velocity.

• angular

• linear

If the values of a function are-------------for each given interval of the domain, the function is said to be periodic.

• different

• the same

The---------- of a function is one-half the difference of the maximum and minimum function values.

• amplitude

• period

A central ---------- has a vertex that lies at the center of a circle.

• angle

• arc

A horizontal translation of a trigonometric function is called a -------- shift.

• phase

• period

The length of a circular arc equals the measure of the radius of the circle times the ---------- measure of the central angle.

• degree

• radian

The period and the ---------- are reciprocals of each other.

• amplitude

• frequency

• sinusoidal

• compound

The values in the ------------- of sine are called principal values.

• domain

• range