A customer purchases a stroller and packs of diapers from a store. The table shows the total cost, in dollars, based on the number of packs of diapers purchased, X.
Packs of Diapers 2 6 10
Total Cost (in dollars) $450
$450 $550 $650
Which function models the relationship between the number of packs of diapers, x, and the
total cost, f(x)?
A f(x) = 25x + 400
B f(x) = 25x + 450
C (x) = 50x + 400
D f(x) = 50x + 450