any help would be appreciated.

question. A correct answer without an explanation will not earn any credit. Consider the function f (x) = 3 cos (x + 1) . Determine its amplitude, period, and midline. Enter the exact answers. For the number 7, either choose or from the bar at the top or type in Pi (with a capital P). Ampliude: A = Number Period: P = Midline: y = Number