Question

Please help me!!!!! Sample Quiz 02-02- creating sine waves

Answer 1

Answer: (c), (a)

Step-by-step explanation:

Given

1. It is known that the amplitude of the wave is the distance between the maximum or minimum point from the centerline

from the graph, $y=1$ is the line about which the distance of the maximum and minimum point is the same i.e.

$\dfrac{3-(-1)}{2}=\dfrac{4}{2}=2$

option (c) is correct

2. For graph second maximum point is 4 and the minimum point is -1, the amplitude is

$\Rightarrow \dfrac{4-(-1)}{2}=\dfrac{5}{2}=2.5$

option (a) is correct