medium · SAT Math
A shipping company charges a delivery fee that depends on the distance traveled. The table shows the total fee, in dollars, for four equally spaced distances. Distance, miles (x): 2 4 6 8 Fee, dollars (y): 15 21 27 33 Which equation best models the relationship between the fee y and the distance x shown in the table?
- y = 15(1.4)^(x-2)/2
- y = 3x + 9
- y = 3x - 9
- y = 6x + 3
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