Using function concepts, it is found that the interval that correctly represents the number of toy cars owned by Xavier over the next 2 years is [40,80]
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- Xavier currently has 40 toy cars. He only plans to increase this number, thus, the minimum value of the function is 40, thus, the interval has the format [40, x].
- Xavier also plans to double this amount over the next 2 years. Double of 40 is 80, as [tex]40 \times 2 = 80[/tex], thus, the maximum value of the function is 80, which means that the interval is [40,80], given by the first option.
A similar problem, involving intervals of functions, is given at https://brainly.com/question/24713599
