Choose the function whose graph is given by:
==
We have the form
y = cos (Bx)
B = 2pi / period
Note that the period = pi
So
B = 2pi / pi = 2
So....the correct answer is
y = cos (2x)
Wow, awesome as always... thank you so much!
No prob....I didn't invent this junk....I just try to wade my way through it, too!!!