Consider the function f (at) = 2 (cos (a: %) + 2) . Determine its amplitude, period, and midline. Enter the exact answers. For the number 11', either choose 71' from the bar at the top or type in Pi (with a capital P). Ampliude: A = Number ab E J; Ial w 5mg) [III 0 Period: P 2 5| I'vdline: y = Number Show your 1work and explain, in your own words, how you arrived at your answers. Answers with no relevant explanations may receive reduced or no credit