Consider the function f (x) - 2 cos (x - " ) + 1 ). Determine its amplitude, period, and midline. Enter the exact answers. For the number 7, either choose a from the bar at the top or type in Pi (with a capital P). Ampliude: A = Number sin (a) ? Period: P = Midline: y = Number Show your work and explain, in your own words, how you arrived at your answers. Answers with no relevant explanations may receive reduced or no credit