Math III EOC Review #2

Front

What is the angle in degrees after moving 300° counterclockwise from (0, -1) on the unit circle?

Back

210°

Front

What are the coordinates on the unit circle at 30°?

Back

(√3/2, 1/2)

Front

What is the inverse of the function y = (2x + 4)/8?

Back

y = (8x - 4)/2

Front

What is the unit circle?

Back

A circle with a radius of 1 centered at the origin (0,0) in the coordinate plane.

Front

What is the sine of an angle in the unit circle?

Back

The y-coordinate of the point on the unit circle corresponding to that angle.

Front

What is the cosine of an angle in the unit circle?

Back

The x-coordinate of the point on the unit circle corresponding to that angle.

Front

What is the tangent of an angle?

Back

The ratio of the sine to the cosine of that angle (tan(θ) = sin(θ)/cos(θ)).

Front

How do you find the reference angle for an angle in standard position?

Back

Subtract 360° or 180° from the angle until it is between 0° and 90°.

Front

What is the formula for converting degrees to radians?

Back

Radians = Degrees × (π/180).

Front

What is the formula for converting radians to degrees?

Back

Degrees = Radians × (180/π).