The given line graph illustrates information about students who visited three academic websites over a period between 2012 and 2017. Overall, the data highlight notable dissimilarities and developments across the categories presented.
Broadly speaking, it is evident that khanacademy.org and coursera.org experienced the greatest change, while udacity.com remained comaratively stable. Another noticeable pattern is that khanacademy.org saw a stable growth throughout the period.
At the beggining of the period, the figure for khanacademy.org was around 0. This number then rose gradually to approximately 250 millions. Regarding coursera.org, it started at 0 and surged to 250 in 2015 reaching its peak. Suddenly, this measure went down gradually to almost 200 in 2017. These early trends indicate that the values moved in defferent directions. However, both of them are still the most visited.
The statistic of udacity.com escalate moderately from 0 in 2012 to 50 in 2017. Which means that this site was the most unpopular among lesson-takers. By the end of the timeframe, the levels of all metrics had stabilished at around 250, 200 and 50.
