Question

Which function has a period of π/2 and an amplitude of 3?
a. y = 3 sin πθ/2
b. y = -6 sin 4θ
c. y = -3sin 4θ
d. y = 6 sin θ/2

Answer 1

A.
y=3 sin (πθ/2). the number "three" is the amplitude of the equation and it is a positive value.

Answer 2

Wait thats wrong, I thought the same thing to but my teacher said it was incorrect.