To qualify for a lifeguard training course, you have to swim continuously for 500 yards either using the front crawl or the breaststroke. you swim the front crawl at a rate of 45 yards per minute and the breaststroke at a rate of 35 yards per minute. you take 12 minutes to swim 500 yards. how much time did you spend swimming the front crawl?

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.