A manufacturer wants to buy a mechanical part of a machine. The CEO, Mr Murlda, took it upon himself to research the most cost.efficient mechanical part that wili be beneficial in the long run. He finally narfowed down to two specific braods, A and B. When bought new, these two brands cost exactly the same, but he studied two graphs and made interesting discoveries. Mr. Murida knows that the value of mechanicat parts decreases over time, as it gets older. The graphs on ANNEXURE A indicates how the value of the respective brands decreased over a period of time. Both brand new brande were sold for 150000,00 . Their values decreased, due to wear and tear, over the period. Study the graphs and answer the guestions below. Describe the relation between the number of months and the value of the parts.