C(x) = 3^x + 2, what does C(7); represent in context of the problem?
3×7+2
3^7
The cost of purchasing 7 items
7 items are being purchased
1 answer
C(7) represents the cost of purchasing 7 items in the context of the problem. Plugging in x=7 into the function C(x) = 3^x + 2 gives C(7) = 3^7 + 2, which calculates the cost of purchasing 7 items.