The line chart illustrates the monthly cost for contact in four distinct cellphones in a specific country in Europe over a span of nine months, beginning from January to September in 2002, measured in euros.
Overall, there was an upward trend in the expenditure on Domo, Lex and Alpha whereas the opposite was true for Slim TX. Specifically, Domo was the prominent brand of cell phone in terms of spending until September when it was surpassed by the Alpha brand.
Looking at the information in detail, we can see that Domo brand had the highest expense, at 15 euros in January while that of the Alpha observed its lowest point, accounting for 5 euros. Over the next eight months, while the figure for Domo slightly increased to about 23 euros, there was a significant surge of 20 euros in the amount of expenditure on Alpha, which exceeded Domo to become the dominant brand in September.
Regarding the other brands, the second-highest point was witnessed in the expenditure on Lex, amounting to 13 euros, while that of Slim TX was lower, at about 8 euros. There were oscillations in both brands throughout, the amount of contract money spent by Domo reached the third lowest point at about 18 euros while that of Slim TX’s counterpart experienced its lowest point of 8 euros in September.