Sumaya is using two different
different Strings of Christmas
lights to
decorate her house
one String flashes
every 10 Seconds.
The other String flashes every 15
Seconds. when sumaya
turns on the lights they flash at the same. work out how long it will be before they flash again at the same time. use the lowest common multiple to work out ur answer ​

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.