How do you find the amplitude and period for y=-2sin(x+pi/2)?
1 Answer
Aug 12, 2016
amplitude = 2
period
Explanation:
For the standard
color(blue)"sine function"
color(red)(|bar(ul(color(white)(a/a)color(black)(y=asin(bx+c)+d)color(white)(a/a)|))) The amplitude = |a| , period
=(2pi)/b phase shift =
-c/b" and " vertical shift = dhere a = -2 , b = 1 , c
=pi/2" and d = 0" Hence amplitude = |-2| = 2 and period
=(2pi)/1=2pi