A helicopter is hovering at an altitude of 1
,
450
1,450 feet above sea level. It descends at a constant rate of
75
75 feet per minute. Which function can be used to determine its height,
H
H, after
m
m, minutes?

Do the inverse operation

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.