HELP ME PLEASE

7. The answer is Airline 1. 8. The answer is 6/4/13. 5. 50+35 times n. 6. Bottom axis could be Number of People and left axis could be Cost of Family

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.