How do you figure out the period of a function in an amplitude

Question

DorianIsHere · Answer

I didnt really pay attention and dont understand it

y=2sin O/2

hannahj · Answer

determine the amplitude by calculating y 1 − y 2 2 where is the highest -coordinate on the graph and is the lowest -coordinate on the graph. 
Then, determine the period by finding the horizontal distance between two peaks on the graph.

hannahj · Answer

answer: Amplitude = 2
Period = 4π

Manny300303199 · Answer

Amplitude = 2
Period = 4π

zxn · Answer

Determining the Amplitude and Period of a Sine Function From its Graph. Step 1: Determine the amplitude by calculating y 1 − y 2 2 where is the highest -coordinate on the graph and is the lowest -coordinate on the graph. Step 2: Determine the period by finding the horizontal distance between two peaks on the graph.

KarmaXD · Answer

I dont remember