A hunter is at a point along a river bank. He wants to get to his cabin, located 5 miles north and 7 miles west. (See figure.) He can travel 5 mph along the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.

Aye i really don’t know this but i need more point so i am guessing it’s c. 2.0or you can use other apps to you get the answer