The line graph illustrates the data of number of students who used three different sites from education throughout the five-year period from 2012 to 2017. The first site(site A) is courera.org, the second one(site B) is khanacademy.org, and the final one(site C) is udacity.com.
According to the graph, during the first half of the period, each site had an upward trend. At the very beginning of the period, all three sites were making up nearly the same number of users(nearly 20 millions of students), there was a significant growth in numbers of site A users to roughly 125 million people. On the other hand, both sites B and C had a more slight rise, nearly 75 and 25 millions of users respectively.
Regarding the second half of the period, the site A has lost the leading position by the end of the period. Despite the fact that in the middle of the period site A had the highest amount of users, it faced a dramatical fall in 2017 to approximately 225 millions of users. On the other hand, the was a notiable rise of users of site B, whose number was standing up just below 250 millions of people in the final year. Looking at the site C, it had a slight growth all over the period and in the end, the number of its users rose to 50 millions of students.
Overall, it is clear from the graph that the site A gave in to site B in the leading position and took the second place in the number of students who were using the site. However, the site C remained at the third place throughout the period