Amplitude, Phase Shift & Period...1

1.
y=a*sin(bx+c)


amplitude a=3

periodicity of sin is 2pi
period=periodicity/|b|..........in your case b=1
period=2pi/|1|=2pi

2.
amplitude a=3/4

periodicity of sin is 2pi
period=periodicity/|b|..........in your case b=1/2
period=2pi/|1/2|=4pi

 

I forgot to say that the threads posted here should be ignored. We will stick to college algebra. Like I promise, I will only post 3 questions on Friday, Saturday and Sunday most likely after moving to my new place.