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.
The function rule for the cost of n pieces of candy can be written as:
Cost(n) = (0.75 * n) - 0.25
This equation takes into account the cost of each piece of candy (0.75) and subtracts the value of the coupon (0.25 off the total purchase), resulting in the cost of n pieces of candy.
The function rule for the cost of n pieces of candy can be written as follows:
Cost(n) = (0.75 * n) - 0.25
In this function rule, n represents the number of pieces of candy, and the cost is calculated by multiplying the price of each candy (0.75) by the number of pieces, and then subtracting the discount from the total cost.
To write a function rule for the cost of n pieces of candy, we need to consider the initial cost per candy and the discount applied by the coupon.
First, let's determine the initial cost per candy. We know that each candy is on sale for $0.75. So, the initial cost per candy is $0.75.
Next, let's consider the discount applied by the coupon. The coupon reduces the total purchase by $0.25. Since the cost of one candy is $0.75, the coupon effectively reduces the cost of n candies by $0.25 * n.
Therefore, the function rule for the cost of n pieces of candy, after applying the coupon, is:
C(n) = (0.75 * n) - (0.25 * n)
This simplifies to:
C(n) = 0.5 * n
So, the function rule for the cost of n pieces of candy is C(n) = 0.5n. This means that the cost of n candies is half of the number of candies, after applying the coupon.