Question

Suppose noodle soup is on sale for $0.75 a can, and you have a coupon for $0.50 off your total purchase. Write a function rule for the cost of n cans of soup

Answer 1

c=0.75n-0.5 where c is ypur total cost in dollars and n is the number of soup bought.

Explanation:

Answer 2

`f(n)=0.75n-0.50`

Explanation:

We are given that

Cost of one can of noodle soup=$0.75

You have a coupon =$0.50 off on your total purchase.

We have to find the function rule for the cost of n cans of soup.

To find the function rule for the cost of n cans of soup we will find first cost of n cans of soup without coupon.

Multiply 0.75 by n to get the cost of n cans of soup

Cost of n cans of soup =
`0.75* n`

Cost of n cans of soup =
`0.75n`

Now, subtract $0.50 from total cost of n cans of soup because coupon of $0.50 off on total purchase

Therefore,exact cost of n cans of soup,f(n)=
`0.75n-0.50`

Where f(n)=Total cost of n cans of soup

Hence, the function rule for the cost of n cans of soup=
`f(n)=0.75n-0.50`