Question

Allowing a y-value value of 1 to represent moonrise and -1 to represent moonset, which function BEST models the lunar cycle if it has a period of 12 hours?

A) y = sin(6x)

B) y = sin(12x)

C) y = sin( πx/ 6 )

D) y = sin( πx/ 2 )

Answer 1

Again which do you know you can eliminate?

Answer 2

A and D??

Answer 3

I was thinking it was B

Answer 4

They were both wrong

Answer 5

so that means it was either A,C or D?

Answer 6

yes