Quiz about Unit 4B Review

Question 1

What is the equation of the graph?

Accepted Answer

y = 2 sin x

Answer

y = 2 cos x

Answer

y = 2sin2x

Answer

y = sin 2x

Question 2

What is the equation of graph?

Accepted Answer

y = 5 cos x

Answer

y = sin 5x

Answer

y =  cos 5x

Answer

y = 5 sin x

Question 3

What is the amplitude of the graph?

Accepted Answer

3

Answer

1

Answer

6

Answer

9

Question 4

what is the amplitude of y = -3sin(7x)-2

Accepted Answer

3

Answer

7

Answer

-2

Answer

6

Answer

-3

Question 5

What is the ratio for cosine?

Accepted Answer

A/H

Answer

H/A

Answer

O/A

Answer

A/O

Question 6

What is the equation of this graph?

Accepted Answer

y=2sin2x

Answer

y=cos2x

Answer

y=2cos2x

Answer

y=2sinx

Question 7

What is an equation of the graph shown?

Accepted Answer

$$y=\ \cos\frac{1}{2}x$$

Answer

$$\ y=\cos\frac{2}{5}x$$

Answer

$$\ \sin\frac{1}{2}x$$

Answer

$$y=\ \sin\frac{2}{5}x$$

Question 8

In the equation y = AsinB(x-h) + k, What does a negative A value cause?

Accepted Answer

A reflection across X axis

Answer

A negative amplitude

Answer

A reflection across the Y axis

Answer

No effect

Question 9

What is the vertical shift?

Accepted Answer

Down 4

Answer

Down 1

Answer

Down 7

Answer

Down 6

Question 10

The __________ represents half the distance between the max and min of a sine or cosine graph.

Accepted Answer

Amplitude

Answer

Period

Answer

Frequency

Answer

Extreme Values

Question 11

Which graph(s) have asyptotes?

Accepted Answer

y=cot(x)

Accepted Answer

y=sec(x)

Accepted Answer

y=csc(x)

Accepted Answer

y=tan(x)

Answer

y=cos(x)

Question 12

A Ferris wheel with a 48-foot diameter makes one revolution every 180 seconds. The center of the wheel is 28 feet above the ground. A person on the Ferris wheel is closest to the ground at t=0 seconds. Let y=f(t) be the person's height above the ground at time t seconds.

The equation of the Ferris wheel is $$y=-24\cos\left(\frac{\pi}{90}x\right)+k$$ .

What is the value of k?

Accepted Answer

28

Answer

4

Answer

52

Answer

24

Answer

48

Question 13

A Ferris wheel with a 48-foot diameter makes one revolution every 180 seconds. The center of the wheel is 28 feet above the ground. A person on the Ferris wheel is closest to the ground at t=0 seconds. Let y=f(t) be the person's height above the ground at time t seconds.

The period of the graph is ___________ seconds

Accepted Answer

180

Answer

90

Answer

28

Answer

360

Answer

48

Question 14

Which are a transformation from the parent graph:

$$y\ =\ \sin\left(-\frac{1}{8}x\right)$$

Accepted Answer

reflection over the y-axis

Accepted Answer

horizontal stretch by 8

Answer

reflection over the x-axis

Answer

horizontal compression by $$\frac{1}{8}$$

Answer

vertical compression by $$\frac{1}{8}$$

Unit 4B Review

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