When a graph is periodic, its shape repeats, again and again. think of at least five events in your life that are periodic and whose periods are long. for example, an event might repeat only once or twice a year, or even once a month. what is the period and frequency of each event? which incidents repeat most frequently? which repeat least frequently?

The event that repeats in my life are
1. Birthday celebration
period = 1 day
frequency = 1 day/year

2. School term. I have three terms ever year and each takes 3 months.
period = 3 months
frequency = 3 times/year

3. Attending to church. I go to church every Saturday.
period = 1 day
Frequency = 1 day/weak

4. I go for holiday vacation for a month once a year. 
Period = 1 month
Frequency = 1 month/year

5. I visit my grandparent two times a year. 
Period = 1 week
Frequency = 2 weeks/year

Which incidents repeat most frequently? 
 Attending to church. I go to church every Saturday.

Which repeat least frequently?
Birthday celebration

so the perpendicular line goes through the given pointyou would get a perpendicular line at some random location

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.