The line graph below shows the number of complaints received by the complaints department of a single airline over a six-month period in 2009. Summarise the information by selecting and reporting the main features making comparisons where relevant.

The line graph illustrates the number of complaints made to an airline’s complaint department in person, by telephone, by email, or by fax during the first half of 2009. Overall, the number of complaints filed in person increased sharply over the six months, reaching its highest level at the end of the period. While complaints […]

The line graph illustrates the number of complaints received by the complaints department of a specific airline from January to June. It is evident that the number of complaints made in person and by telephone tended to increase throughout the entire period. In contrast, complaints sent via email or fax exhibited a downward trend over […]

The line chart compares the number of complaints made to the airline’s department through three different means: personal delivery, email, and telephone during the first half of 2009. Overall, the airline received an increasing number of spoken communications from airline passengers, as compared to a declining preference for written ones over the time frame shown. […]