If 1/4 cup sour cream makes 3 2/8 containers of soup, then how much sour cream is in 1 container of soup?

1/13 cups of sour cream goi into 1 container of soup.

Step-by-step explanation:

Write and solve an equation of ratios:

 1/4 cup sour cream               x

=

     3 2/8 container           1 container

Then 1/4 = (26/8)x, or

         1/4 = (13/4)x, or x = (1/4)(4/13) = 4/52, or  x = 1/13.

1/13 cups of sour cream goi into 1 container of soup.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value