According to data, the accident rate as a function of the age of the driver in years x can be approximated by the function f(x)=46.5-2.26x +0.0298x² for 16 ≤x≤ 85. Find the age at which the accident rate is a minimum and the minimum rate. How is the age determined for the age at which the accident rate is a minimum? OA. Substitute 0 for x and solve for f(x). B. Determine the x-value of the vertex. LOC. Determine the y-value of the vertex. OD. Substitute 16 for x and solve for f(x) because the minimum value of the function always occurs at the minimum value of x in the interval. The age at which the accident rate is a minimum is 4. (Round down to the nearest whole number.)

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