Unit Circle and Trigonometry Equations

What direction does the Unit Circle follow?

• Clockwise

• Counterclockwise

• Left to Right

• Lowest to Highest

What point belongs in the red blank box?

• (0,0)

• (0,1)

• (-1,0)

• (0,-1)

In which quadrant does (3π/4) belong?

• I

• II

• III

• IV

In which quadrant does (7π/6) belong?

• I

• II

• III

• IV

In which quadrants is (sin x) negative? Choose all that are correct.

• I

• II

• III

• IV

Which degree measures (3π/2)?

• 90

• 180

• 270

• 360

Use your unit circle diagram. Which angle is co-terminal with 60^o?

• -300^o

• 60^o

• -120^o

• 120^o

Use your unit circle diagram. Which angle is co-terminal with 120^o?

• -300^o

• 60^o

• -120^o

• -240^o

Which angles are co-terminal with -90^o? Choose all correct answers.

• 270^o

• -90^o

• 45^o

• 630^o

Solve the equation 3 cos x - 1 = -1. Which radian values from 0 < x < 2π make this true? Choose both values.

• 0

• π/2

• π

• 3π/2