Quiz about Introduction to the Unit Circle

Question 1

The x value on the unit circle is defined by which function?

Accepted Answer

Sin $$ heta$$

Answer

Cos $$ heta$$

Answer

Tan $$ heta$$

Question 2

The y value on the unit circle is defined by which function?

Accepted Answer

Cos $$ heta$$

Answer

Sin $$ heta$$

Answer

Tan $$ heta$$

Question 3

Estimate the value of $$ heta$$

Accepted Answer

$$\frac{4\pi}{3}$$

Answer

$$\frac{7\pi}{4}$$

Answer

$$\frac{3\pi}{4}$$

Answer

$$\frac{2\pi}{3}$$

Question 4

What is the radius of a unit circle?

Accepted Answer

1

Answer

2

Answer

1/2

Answer

0

Question 5

Which point on the unit circle corresponds to an angle of $$\frac{7\pi}{6}$$ radians?

Accepted Answer

$$(-\frac{\sqrt{3}}{2}, -\frac{1}{2})$$

Answer

$$(-\frac{1}{2}, -\frac{\sqrt{3}}{2})$$

Answer

$$(\frac{\sqrt{3}}{2}, \frac{1}{2})$$

Answer

$$(\frac{1}{2}, \frac{\sqrt{3}}{2})$$

Question 6

Which point on the unit circle corresponds to an angle of $$\frac{3\pi}{2}$$ radians?

Accepted Answer

$$(0, -1)$$

Answer

$$(0, 1)$$

Answer

$$(1, 0)$$

Answer

$$(-1, 0)$$

Question 7

Which point is the center?

Accepted Answer

O

Answer

A

Answer

B

Answer

C

Question 8

Which segment is a radius?

Accepted Answer

all the above

Answer

RO

Answer

AO

Answer

OB

Question 9

Cosine refers to which aspect of the unit circle?

Accepted Answer

The x-coordinate of the point as it moves around the unit circle

Answer

The y-coordinate of the point as it moves around the unit circle

Answer

The slope of the radius as it moves around.

Answer

The length of the radius

Question 10

Sine refers to which aspect of the unit circle?

Accepted Answer

The y-coordinate of the point as it moves around the unit circle.

Answer

The x-coordinate of the point as it moves around the unit circle.

Answer

The slope of the radius as it moves around.

Answer

The length of the radius

Question 11

What is the greatest value that the sine function can ever output?

Accepted Answer

1

Answer

0

Answer

$$\frac{1}{2}$$

Answer

$$\frac{\sqrt{2}}{2}$$

Introduction to the Unit Circle

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics