The line graph illustrates the average monthly contract costs for four mobile phone brands—Domo, Lex, Sim TX, and Alpha—between January and September 2002 in a European country.
Overall, the graph reveals significant variations in contract prices for the different brands, with Domo experiencing the most considerable increase, while Sim TX exhibited a notable decline.
In detail, Domo’s average cost commenced at €10 in January and demonstrated a consistent upward trajectory, reaching a peak of €25 by September. Similarly, Lex began at €5, underwent fluctuations, and peaked at €15 in July, ultimately rising to €18 by the close of September. Alpha’s pricing pattern reflected relative stability, starting at €5 and ascending gradually to €10 by the end of the period. Conversely, Sim TX, which started at €20, experienced a dramatic downturn, plummeting to €10 by July, followed by a modest resurgence to €15 in September.
To further elucidate, Domo’s rise was steady, with prices increasing from approximately €15 in January to nearly €20 by March, before maintaining this level until September. In contrast, Lex’s initial increase engendered a plateau around €15 until August, after which its value resumed upward growth. Despite the fluctuation, Alpha’s price remained stable for the first six months, culminating in a significant rise of €20 in September. Conversely, Sim TX’s trajectory was markedly unfavorable, reflecting a decline that persisted from Mt€15 in January down to around €7 by the conclusion of the observed period.