Candy is on sale for $0.75 each. You have a coupon for $0.25 off your total purchase. Write a function rule for the cost of n pieces of candy.
Cost of n pieces of candy = 0.75n - 0.25
1.c
2.a
3.b
4.d
Pearson Connexus 100%
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To write a function rule for the cost of n pieces of candy, we need to consider the original price of each candy piece, the sale discount, and the coupon discount.
The original price of each candy piece is $0.75. Since there is a sale going on, we can assume that the price after the discount is applied is less than the original price. Therefore, the price after the sale discount is $0.75.
Next, we have a coupon for $0.25 off the total purchase. This means that for each purchase, we will subtract $0.25 from the total cost.
Based on these considerations, we can write the function rule as follows:
Cost(n) = (n * $0.75) - $0.25
Explanation:
- n represents the number of candy pieces you want to purchase.
- Multiplying n by $0.75 gives you the total cost before applying any discounts.
- Subtracting $0.25 from the total cost accounts for the coupon discount.
Using this function rule, you can easily calculate the cost of any number of candy pieces by plugging in the desired value for n.