Changes in Period and Phase Shift of Sine and Cosine Functions — Test

Question 1

In the triangle below, angle B measures 60° and BC is 18. What is the length of AC?

Revolt · Accepted Answer

StartFraction StartRoot 3 EndRoot Over 9 EndFraction

Question 2

What is the length of the hypotenuse in the triangle below?

Revolt · Accepted Answer

cm

Question 3

What is the value of x in the diagram below?

Revolt · Accepted Answer

StartFraction 18 StartRoot 2 EndRoot Over StartRoot 3 EndRoot EndFraction

Question 4

In a right triangle, and . What is the approximate value of ?

Revolt · Accepted Answer

2.659

Question 5

Which statement accurately describes how adding a number, n, to the function affects its graph?

Revolt · Accepted Answer

There is a vertical shift of n units.

Question 6

Which of the following is true for f(x) = –2sin(x) – 3?

Revolt · Accepted Answer

The amplitude of the function is 2.

Changes in Period and Phase Shift of Sine and Cosine Functions — Test Answers