Suppose noodle soup is on sale for $75 a can and you have a coupon for 50 cents off your total purchase right a function rule for the cost of in cans of soup
Let's assume the function rule is represented by C(x), where C is the cost of soup and x is the number of cans of soup.
Since each can of soup costs $75, the cost of x cans of soup can be represented as x * $75 = 75x.
Now, let's consider the discount from the coupon. The coupon offers a reduction of 50 cents off your total purchase. Since we are purchasing x cans of soup, the reduction in total cost due to the coupon can be represented as 0.50x.
Therefore, the function rule for the cost of x cans of soup, considering the coupon, is:
C(x) = 75x - 0.50x
Simplifying this expression, we get:
C(x) = 74.50x
Therefore, the function rule for the cost of x cans of soup, including the coupon, is C(x) = 74.50x.