Question 1183280: State the equation of your choice that has an amplitude of 3 units, a period of 2𝜋/ 3 and a minimum at (0, -8) Answer by ikleyn(52884) (Show Source):
y = -5 - 3*cos(3x). ANSWER.
EXPLANATION
The minimum value of -8 and the amplitude of 3 dictate that the midline is y = -5.
The fact that the minimum is at x= 0 dictates to use the cosine function flipped/reflected about the midline.
The argument of (3x) provides / models the period .
Completed, solved, answered and carefully explained.