The line graph provided illustrates the fluctuations in the number of complaints reported to the complaints department of an airline in six months in 2009.
Overall, after analyzing the provided chart, it can be concluded that both in person and by telephone complaints increase much higher than by email or fax complaints.
In the beginning, several changes happened between January and June. In January, by email or fax and by telephone complaints were much more than in person complaints. By telephone complaints recorded around 900 complaints. While by email or fax hit around 800 complaints. In person complaints was the least between them as it scored slightly more than 400 complaints. Then, Between February and March, in person complaints reached about 700 complaints. Similarly, by email or fax complaints recorded 700 complaints. On the other hand, by telephone complaints soared as it scored around 900 complaints.
After that, in April, by email or fax complaints shows a gentle decline. It only scored less than 600 complaints. However, by telephone and in person complaints continued in upsurging. In person complaints hit more than 1200 complaints. Whilst by telephone complaints scored slightly higher than 1000 complaints. Later on, in June, by email of fax complaints were still decreasing as they scored less than 400 complaints. Although by telephone complaints upsurged a lot as it reached 1600 complaints, in person complaints were still more as it scored more than 1800 complaints.