The table below shows the number, in thousands, of vehicles parked in the central business district of a certain city on a typical Friday as a function of the number of hours after 9 AM. hours after 9 AM Number of vehicles parked in thousands 0 6.2 2 7.4 4 7.6 6 6.7 8 4 a. Find the best fit quadratic model for the data. b. Use your model to predict the number of parked cars at 2:30 PM.

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4. The table below shows the number, in thousands, of vehicles parked in the central business district of a certain city on a typical Friday as a function of the number of hours after 9 AM.

hours after 9 AM Number of vehicles parked in thousands
0 6.2
2 7.4
4 7.6
6 6.7
8 4

a. Find the best fit quadratic model for the data.

b. Use your model to predict the number of parked cars at 2:30 PM.

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